SSCMASSCALIBDV2P1 RENESAS | Alldatasheet
Document overview
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Technical content
Features
Multiple sensor module (DUT) access with support for the different digital interfaces of IDT SSC ICs Interface to the user’s computer via a USB port via the SSC CB, which is also included in IDT’s modular SSC Evaluation Kits Each MCB interfaces up to 24 DUTs Up to 8 MCBs can be connected in series and are addressable separately via one SSC CB, allowing simultaneous calibration of up to 192 DUTs with one system Separate power supplies for the MCB, the DUTs, and the I2C bus is possible DUT analog output signal measurement PC-controlled “plug & play” mass calibration and configuration via USB interface – simple, low cost Same ZSSCxxx Evaluation Software as for ZSSCxxxx Evaluation Kits – simple installation.
Contents
SSC Mass Calibration Board V2.1 Software is available for download from the product page for the Mass Calibration System (MCS) for the specific DUT product The DUTs are connected via standard connectors with mechanical locking * The board uses LIN protocol at a voltage level of 5VDC. SSC Mass Calibration Board V2.1
SSC Mass Calibration Board V2.1 Datasheet © 2018 Integrated Device Technology, Inc. 2 April 18, 2018 Important Notes Disclaimer Integrated Device Technology, Inc. and its affiliated companies (herein referred to as “IDT”) shall not be liable for any damages arising out of defects resulting from (i) delivered hardware or software (ii) non-observance of instructions contained in this manual and in any other documentation provided to user, or (iii) misuse, abuse, use under abnormal conditions, or alteration by anyone other than IDT. TO THE EXTENT PERMITTED BY LAW, IDT HEREBY EXPRESSLY DISCLAIMS AND USER EXPRESSLY WAIVES ANY AND ALL WARRANTIES, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE, STATUTORY WARRANTY OF NON-INFRINGEMENT, AND ANY OTHER WARRANTY THAT MAY ARISE BY REASON OF USAGE OF TRADE, CUSTOM, OR COURSE OF DEALING. Restrictions in Use IDT’s Mass Calibration System (MCS), consisting of the Communication Board (SSC CB), Mass Calibration Board (MCB), and the ZSSCxxxx Evaluation Software, is designed for sensor module evaluation, laboratory setup and the module’s mass calibration development only. IDT’s Mass Calibration System (MCS) must not be used for module production and production test setups. Firmware Compatibility The current version of the SSC CB is V4.1. For previous SSC CB versions, if the firmware version is earlier than V2.19a, the board will not be able to communicate about the update procedure, refer to the SSC Communication Board Application Note – Firmware Updates available at www.idt.com/ssc-cb. Compatibility with Previous MCB Versions If the MCB V2.1 is to be used with a previous version MCB V2.0, refer to the ZSC31xxx/ZSSC3xxx MCS Application Note – Mass Calibration Board Interaction (available upon request). Do not connect a previous version MCB V2.0 as the first MCB connected to the SSC CB.
Figure 1. Mass Calibration Board (MCB)
Table 1. MCB Pin Assignments
11 CB-SCL Buffered clock signal for communication
13 CB-SDA Buffered data signal for communication
25 OWI OWI signal from/to SSC CB
27 ADC Analog output voltage to 10 bit-ADC of SSC CB
29 LIN LIN signal from/to SSC CB
35 RXD READ DATA channel of the MCB microcontroller’s UART
41 D3 MCB feedback answer
Table 2. Pin Assignment MCB-Module (DUT) Also see Figure 4 for the layout of the connector.
1 VDDA VDDA Positive DUT supply (switched by a PMOS)
3 SCL SCL Clock signal for communication (only I2C)
5 SDA SDA Data signal for communication
7 HV HV-DUT Connected to HV-DUT (KL5)
9 AOUT OWI/LIN Analog voltage output or OWI/LIN interface
- Electrical Characteristics
Table 3. Operating Conditions
4.1 General Information
to 8 MCBs, allowing calibration of up to 192 DUTs. Figure 2. Modular Mass Calibration System (MCS) MCB Address 0 MCB Address 1 MCB Address 2 MCB Address ...
4.2 Communication Interface to User’s Computer
SSC CB versions earlier than V4.1), see the documentation for the SSC CB available on the IDT website at www.idt.com/ssc-cb. MCBs are parallel at the port. The SSC CB’s answer to the PC can be verified at the TXD pin.
4.3 Firmware Version
For SSC CB versions earlier than V4.1, see the important notice on page 2 regarding firmware compatibility. the version string of the MCB with this address; for example “1” for the second MCB. this, short jumper K20 (“update MCB”) when the firmware of µC must be updated. Important: Do not connect the jumper on K20 during normal operation. Figure 3. IDT SSC Terminal Program
4.4 Software for the Mass Calibration System
documentation for the product’s SSC Evaluation Kit for instructions for installing and using the software.
SSC Mass Calibration Board V2.1 Datasheet © 2018 Integrated Device Technology, Inc. 10 April 18, 2018
4.5 Addressing and Communication Options
The MCB supports I2C, LIN, and OWI communication interfaces. The communication is controlled by the SSC CB’s microcontroller only. The MCB’s microcontroller only controls the DUT’s multiplexing and communicates via a separate channel with the microcontroller of the SSC CB. A multiplexer (IC5 – MAX4634EUB) selects the communication interface. The control signals of the multiplexer are generated by the MCB’s microcontroller and are described in section 4.5.1. A total of eight MCBs can be connected in series via the connectors K2 and K3. The MCB with the hardware address “0” must be connected to the SSC CB at K2 (see Figure 2).The address for each MCB must be set manually to a unique address via the position of jumper shunts on K4 on each board (see Figure 1). The MCB’s addresses must be in sequence (inverted logic: floating jumper = “0”). The D4, D5, and D6 LEDs display the configured address of the MCB. Details about setting the MCB address can also be found in Table 6. A bus repeater (IC3 – P82B96T) interfaces between the two voltage levels at KL2 and KL3. This bus repeater has no pull -up resistors on the SDA and SCL pins on the primary side. These pull-ups are not needed because the SSC CB generates the bus levels on SDA and SCL via a 4.7kΩ pull-up resistor. The OWI interface is pulled up with a 22kΩ resistor between connector K2 and the multiplexer IC on the MCB. On the secondary side, there are 4.7kΩ pull-up resistors. If there are very heavy capacitive loads at the SCL , SDA, or OWI line, it might be necessary to decrease these pull -ups so that drive capability increases and timing requirements of the I2C protocol specification are fulfilled again. Pull-up resistor and communication -line load capacitance must be adapted in the application to the selected communication speed. Communication conditions are described in detail in the IDT datasheet for the SSC DUT. The MCB provides different pull-ups: SCL: Standard 4.7kΩ (additional 1.5kΩ can be switched on) SDA: Standard 4.7kΩ (additional 1.5kΩ and 470Ω can be switched on) If the MCB’s pull -up does not fit the communication requirements of the application, then it is possible to add an additional parallel pull-up resistor between the DUT and the connector: Pin 1 and pin 3 of the DUT connector for SCL Pin 1 and pin 5 of the DUT connector for SDA or one-wire communication
4.5.1 Communication Interface Multiplexer
The MCB V2.1 uses a multiplexer to select the communication interface. This IC (MAX4634) selects one communication channel fr om four input channels. Since only three interfaces are useable, the last input channel is connected to ground. The connection of t his IC can also be found in schematic of MCB’s Central Control Unit in Figure 7. The multiplexer needs two signals that select the communication interface. If an MCB firmware version later than V2.00a is used, then these two signals will be controlled automatically by the followin g command, which enables the communication interface. The firmware version can be detected as described in section 4.3. X9CZ1:X Communication interface OWI for all MCBs (9) is enabled (“1“) OWI selected X9CZ0:X Communication interface OWI for all MCBs (9) is disabled (“0“) I2C selected If MCB firmware V2.00a is used,1 then in addition to the “X9CZp:X” command, these signals must be set manually via the following commands before an interface command is sent. For details of commands, refer to SSC Communication Board Command Syntax. X9PS_D20:X Port D2 of all MCBs (9) is Set to “0” X9PS_D31:X Port D3 of all MCBs (9) is Set to “1” 1 Firmware version can be detected as described in section 4.3.
Table 4 lists all combinations of pins D2 and D3 and the resulting communication interface. Table 4. Interface Configuration
4.5.2 Using the I2C Interface
lines and communication cable) must be fitted. See the datasheet for the specific IDT SSC DUT for the I2C protocol and timing details.
4.5.3 Using the OWI Interface
communication cable) must be fitted. A load capacitance of 15nF requires a ~330Ω pull-up resistor, and 2.2nF requires approximately 4.7kΩ. See the datasheet for the specific IDT SSC DUT for OWI protocol and timing details.
4.5.4 Using the LIN Interface
The ZSSC3170 is an IDT SSC DUT that provides a LIN interface. LIN communication using the MCS had not yet been evaluated.
4.6 Mass Calibration Reference Board (MCR)
to the product’s Evaluation Kit document for details about the MCR.
4.7 Analog Voltage Output Measurement
addressing of the DUT is controlled by the Evaluation Software.
Refer to the Mass Calibration System Kit Description for the specific product for specific setup instructions.
5.1 Kit Hardware Connections
5.1.1 DUT Control and Connector
DUTs and access to individual DUTs via a unique address. Figure 4. Pin Assignment of DUT Connector Evaluation Software (see Figure 4). The LIN interface (see section 4.5.4) is supported by the ZSSC3170 (in place of the OWI interface).
5.1.2 ISP and C-IF Connectors
Figure 1). These communication interfaces (C-IF) are described in Table 5. Table 5. C-IF Connectors K2 “C-IF_in” For the first MCB, connect K2 to the SSC CB. compatibility with previous version MCBs. For the subsequent MCBs, connect K2 to the previous MCB.
5.2 Power Supply Options
supply voltages. For jumper settings for different operation modes, refer to Table 6. Table 6. Screw Terminals on the MCB V2.1 This required power supply must be in the range of 8 to 16 VDC. powered with a voltage lower than 5V. A power supply in the range of 2.7 to 5.5 VDC can be connected. See section 5.3 for detailed jumper setting information. “VDD_DUT” power supply is used. A power supply in the range of 2.7 to 5.5 VDC can be connected. See section 5.3 for detailed jumper setting information. connector (see section 5.1.1). A power supply in the range of 8 to 40 VDC can be connected. is needed for DUTs that require a 5V power supply (see Table 6 for detailed information for jumper settings). malfunctions during communication. connected directly to the HV-DUT pin on all DUT connectors. See section 5.1.1 for more details.
The D3 LED displays the status of the power supply for the MCB’s microcontroller. Figure 5. D3 Status LED for MCB Microcontroller
5.3 MCB Jumper Setup
Table 7 gives a general overview of the MCB jumper settings. Table 7. General Jumper Setup for the MCB V2.1 Assign first MCB to address 000BIN. Assign remaining MCBs in ascending order. detailed description of jumper settings. Only install this jumper if the firmware is to be updated. powered by the MCB’s 5V supply voltage regulator (via KL1 with 8 to 16V VDC).
are supplied via the KL3 (“I2C Power”). supply from the same power to avoid malfunctions during communication. Table 8. K4 Address Jumpers on the MCB V2.1 Check the MCB address displayed on LEDs D4, D5, and D6. address setting only after a reset or power-up. power supply at KL1 is within the range of 8 to 16 VDC.
SSC Mass Calibration Board V2.1 Datasheet © 2018 Integrated Device Technology, Inc. 16 April 18, 2018 6. Communication Settings The SSC MCB V2.1 contains a microcontroller with an internal 8 -bit RISC processor. The serial communication between the MCB microcontroller and the SSC CB microcontroller is handled their standard UART interfaces. All functions of the MCB can be con trolled by the SSC CB. In the simplest case, a terminal program (e.g., Hyper Terminal) with the following configuration can communicate via the corresponding virtual COM port using defined commands with the hardware. Baud rate: 19200 Data bits: 8 Stop bits: 1 Parity: None The Evaluation Software includes a small terminal program, adapted to the communication parameters of the SSC CB. The communi cation procedures of the various software modules are based on this model. The possible commands can be classified as READ, WRITE, or SPECIAL commands. Every command sent to the hardware will be answered by a “value” or an error code. For the DUT’s typical data struc tures, refer to the Functional Description for the specific IDT SSC DUT, which is available on the product’s page on IDT’s web site www.IDT.com.
6.1 Commands for the Mass Calibration Board
The known command set of the SSC CB is valid for the MCB as described in the SSC Communication Board Datasheet. There is an additional command “X.” This command “X” does not affect the SSC CB directly; however, a monitoring of the MCB’s ACKNOWLEDGE signal is initialized. The SSC CB forwards these ACKNOWLEDGE signals or an error code (in the event of a NO ACKNOWLEDGE) to the user’s computer. A command can be extended by the MCB’s pre-command segment. Syntax of this pre-command segment: “a” is the ID of the MCB to be addressed. There are different types of syntax: 1. Standard “Port Set/Read” commands are running on the MCB itself. (The CB forwards the MCB’s ACKNOWLEDGE signal to the user’s computer only!) Example: X1PS_A01:X Port A0 of the MCB with address “1” is Set to“1” 2. Control of the logic sensor Channels (1 to 24) (“C” symbolizes “Channel” and “_” is a wild card character.) (Channel “99” addresses the entire 24 sensor Channels simultaneously.) Example: X4C_221:X Channel 22 of the MCB with address “4” is set to “1” (= power supply of this Channel is turned ON by a power transistor.) Example: X9C_990:X all (99) Channels of all MCBs (9) are set to “0” (= power supply to all Channels is turned OFF with this command.)
SSC Mass Calibration Board V2.1 Datasheet © 2018 Integrated Device Technology, Inc. 17 April 18, 2018 3. Activation of communication Channels The following commands control the logic on the dual DUT control circuit: X1CZ1:X activates (= “1”) OWI communication via the MCB with address “1” X9CA1:X activates (= “1”) Analog Channel of all connected MCBs (address“9” = all) X1CZ0:X deactivates (= “0”) OWI communication via the MCB with address “1” The next commands control the signal flow between the CB’s microcontroller and the DUT: X9PS_D21:X set control signal for multiplexer (IC5 on Central Control Unit) X9PS_D30:X set second control signal (selects OWI interface on all MCBs (9)) 4. Simultaneous commands for the SSC CB and MCB Example: X1C_241:OW_7800172 activates (= “1”) Channel 24 of the MCB with address “1” (power ON); 5ms later (fixed) the command “ OW_7800172” is run by the SSC CB (via this command, the OWI interface of the DUT is initialized and the DUT is set into “Command Mode”) 5. Special commands for MCB X1V:X read the firmware’s Version string for the MCB with address “1”
- Application Recommendations
can be supplied by the internally generated 5 VDC supply voltage if the DUT’s supply voltage is 5V.
7.1 DUT Supply Voltages Higher than the MCB’s Supply Voltage
SSC DUT regarding voltage regulator adjustment, if applicable). Figure 6. DUT Connection Circuitry for High Voltage DUT Supply Calibration System Feature Sheet. Note that in this case, the communication potentials are pulled high (open drain!) using the VDDA supply potential.
7.2 DUT Supply Voltages Lower than the MCB’s Supply Voltage
Supply the DUTs with required supply voltage via connector “VDD_DUT” (KL2). Connect the I2C communication line supply to the same potential/supply voltage via the connector “I2C Power” (KL3). because the coupling between the DUTs would invalidate the loop current measurement.
7.4 DUT Output Voltage Measurement using MCB
board ADC (the 10-bit ADC of the ATMEGA32). Note: In general, the DUT’s output potential to be measured (VOUT) is never higher than the MCB’s supply voltage (5V). All DUTs are calibrated and programmed completely. No communication. See the SSC Communication Board Command Syntax for an example with communication. Table 9. Commands for Analog Voltage Measurement 1 x9ca1:x Enable analog output measurement for all connected MCBs. 2 x9cp1:x Power on all DUTs on all MCBs. 3 x9c_990:x Switch off all open communication/measurement channels on all MCBs. Loop Loop from first DUT on first MCB to last DUT on last MCB. CB’s ADC or with a digital multimeter connected at KL4 or K6.
SSC Mass Calibration Board V2.1 Datasheet © 2018 Integrated Device Technology, Inc. 20 April 18, 2018 CMD# Command Description 5 a_1RRR Use the SSC CB’s ADC for analog output voltage measurement. => Delivers averaged value of “R” samples with R = 0 to 255, 3 characters required. The result is referenced and ratiometric to the SSC CB’s VDDA. 10-bit resolution: minimum is 0000HEX; the maximum is 03FFHEX. 6 x9c_990:x Close all open communication/measurement channels on all MCBs. Loop end 7 x9ca0:x Disable analog output measurement for all connected MCBs. 8 x9cp0:x Power off all DUTs at all MCBs. Recommendations for Commands: X$c_##1:x Only one DUT on one MCB can be active at a time when using an external digital multimeter on every MCB via KL4 or K6 => X$c_##1:x Only one DUT on all MCBs can be active at a time when using only one external digital multimeter or the CB’s ADC => use X$ca*:x Processing of x$ps_F3*:x, x$ps_F4*:x and x$ps_G0*:x x$ps_G0*:x Activate/deactivate the MCB’s analog output mode (ATMEGA port G0). * = 0 or 1 “1” for activation of the port and “0” for deactivation of the port. x$ps_F3*:x Connect/disconnect the DUT’s analog output to the SSC CB’s 10-bit ADC (ATMEGA port F3). x$ps_F4*:x Connect/disconnect the DUT’s analog output to KL4 and K6 (ATMEGA port F4).
Figure 7. Schematic – Central Control Unit
Figure 8. Schematic – Dual DUT Control Circuit
SSC Mass Calibration Board V2.1 Datasheet © 2018 Integrated Device Technology, Inc. 23 April 18, 2018 9. Board Layout
SSC Mass Calibration Board V2.1 Datasheet © 2018 Integrated Device Technology, Inc. 24 April 18, 2018 10. Glossary Term Description CB Communication Board DUT Device Under Test HV High Voltage MCB Mass Calibration Board MCR Mass Calibration Reference Board MCS Mass Calibration System OWI One-Wire-Interface SSC Sensor Signal Conditioner UART Universal Asynchronous Receiver/Transmitter 11. Ordering Information Orderable Part Number Description SSCMASSCALIBDV2P1 SSC Mass Calibration Board V2.1
SSC Mass Calibration Board V2.1 Datasheet © 2018 Integrated Device Technology, Inc. 25 April 18, 2018 12. Revision History Revision Date Description of Change April 18, 2018 Revision for Appendix A. Updates for template. Update for board images. Addition of order code table. Minor edits April 1, 2016 Changed to IDT branding. The revision is now the release date. August 6, 2014 (Rev. 2.00) Updated for SSC CB revision 4.1. Document referenced to all supported SSCs. Updates for imagery for cover and headers. Updates for contacts. December 6, 2010 (Rev. 1.04) Added details to section 4.5.1. Added section 4.3. July 30, 2010 (Rev. 1.03) First release after format update. September 9, 2009 (Rev. 1.02) Technical revision. Added pictures for descriptions of jumper settings and screw terminals. Removal of “Interaction with former MCBs” section to a separate document. July 3, 2009 (Rev. 1.01) Reorganization of document. Added “Application Hints” from Rev. 0.09. June 15, 2009 (Rev. 1.00) First release after format update. Update for MCB V2.1.
SSC Mass Calibration Board V2.1 Datasheet
26 April 18, 2018
Appendix A: Examples of Measurement This section shows some measurement examples. These examples are made with a ZSC31050 connected as DUT1 to MCB with address 0. The commands from section 6.1 can be used for setup and communication. I2C Communication x0c_990:x 'set signal ALL = 0 (= inactive) x0cz0:x 'activate I2C communication x0c_011:x ‘activate channel 1 iw_7800172 iw_7800102 'start cycle ‘wait 0.03 settling time ir_78002 ‘read 2 Bytes from address 78 x0c_010:x ‘deactivate channel 1 OWI Communication x0cz1:x 'activate OWI communication ps_a01 'set port a0 to “1” (OWI line = “high”) x0c_011:ow_7800172 'activate channel 1 and transmit command “ow_7800172” with a delay of 5ms ow_78003970134 'configures RAM to “OWI forever” functionality regarding sensor signal output ow_7800102 'start cyclic measurement or_78002 'read 2 bytes from address 78 x0c_010:x ‘deactivate channel 1 Analog Voltage Output x0ca1:x 'activate analog channel x0c_011:x 'activate channel 1 ‘wait 0.05s settling time for analog value a_1010 'read analog value x0c_010:x ‘deactivate channel 1
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