Tews Technologies TPMC316 User manual

The Embedded I/O Company
TPMC316
Conduction Cooled
CAN Bus PMC Module
Version 1.0
User Manual
Issue 1.0.5
February 2010
TEWS TECHNOLOGIES GmbH
Am Bahnhof 7 25469 Halstenbek, Germany
Phone: [phone] Fax: [phone]
e-mail: [email protected] www.tews.com

TPMC316 User Manual Issue 1.0.5 Page 2 of 20
TPMC316-10
Conduction cooled CAN bus PMC module with
CAN High Speed interface
TPMC316-11
Conduction cooled CAN bus PMC module with
modified RS485 interface
This document contains information, which is
proprietary to TEWS TECHNOLOGIES GmbH. Any
reproduction without written permission is forbidden.
TEWS TECHNOLOGIES GmbH has made any
effort to ensure that this manual is accurate and
complete. However TEWS TECHNOLOGIES GmbH
reserves the right to change the product described
in this document at any time without notice.
TEWS TECHNOLOGIES GmbH is not liable for any
damage arising out of the application or use of the
device described herein.
Style Conventions
Hexadecimal characters are specified with prefix 0x,
i.e. 0x029E (that means hexadecimal value 029E).
For signals on hardware products, an ‚Active Low’ is
represented by the signal name with # following, i.e.
IP_RESET#.
Access terms are described as:
W Write Only
R Read Only
R/W Read/Write
R/C Read/Clear
R/S Read/Set
©2000-2010 by TEWS TECHNOLOGIES GmbH

TPMC316 User Manual Issue 1.0.5 Page 3 of 20
Issue Description Date
1.0 First Issue August 2000
1.1 Change default values for Hot Swap Register June 2002
1.2 General Revision May 2003
1.3 New Hardware Revision July 2006
1.4 New address TEWS LLC September 2006
1.0.5
(1) New Notation for User Manual and Engineering
Documentation
(2) Added Note for TPMC316-10 Min. Baud Rate in the
Technical Specification Table
February 2010

TPMC316 User Manual Issue 1.0.5 Page 4 of 20
Table of Contents
1PRODUCT DESCRIPTION.........................................................................................6
2TECHNICAL SPECIFICATION...................................................................................7
3LOCAL SPACE ADDRESSING..................................................................................8
3.1 PCI9030 Local Space Configuration .............................................................................................8
3.2 Local Address Space 0...................................................................................................................8
3.3 CAN Controller Address Map ........................................................................................................9
4PCI9030 TARGET CHIP...........................................................................................12
4.1 PCI Configuration Registers (CFG).............................................................................................12
4.1.1 PCI9030 Header ................................................................................................................12
4.1.2 PCI Base Address Initialization..........................................................................................13
4.2 Local Configuration Register (LCR)............................................................................................14
4.3 Configuration EEPROM................................................................................................................15
5CONFIGURATION HINTS........................................................................................16
5.1 PCI Interrupt Control/Status ........................................................................................................16
5.2 Local Software Reset....................................................................................................................16
5.3 Big / Little Endian..........................................................................................................................17
6INSTALLATION........................................................................................................19
6.1 CAN bus Termination ...................................................................................................................19
6.2 Physical Interface..........................................................................................................................19
7PIN ASSIGNMENT – I/O CONNECTOR ..................................................................20
7.1 Mezzanine Card Connector P14 ..................................................................................................20

TPMC316 User Manual Issue 1.0.5 Page 5 of 20
List of Figures
FIGURE 1-1 : BLOCK DIAGRAM......................................................................................................................6
FIGURE 6-1 : SOLDERING CONNECTION LOCATION LB1 – LB2..............................................................19
List of Tables
TABLE 2-1 : TECHNICAL SPECIFICATION.....................................................................................................7
TABLE 3-1 : PCI9030 LOCAL SPACE CONFIGURATION ..............................................................................8
TABLE 3-2 : MEMORY ADDRESS MAP CAN CONTROLLER CHANNEL 0 CANCH0.................................10
TABLE 3-3 : MEMORY ADDRESS MAP CAN CONTROLLER CHANNEL 1 CANCH1.................................11
TABLE 4-1 : PCI9030 HEADER......................................................................................................................12
TABLE 4-2 : PCI9030 BASE ADDRESS USAGE...........................................................................................13
TABLE 4-3 : PCI9030 LOCAL CONFIGURATION REGISTER......................................................................14
TABLE 4-4 : CONFIGURATION EEPROM TPMC316-XX.............................................................................15
TABLE 5-1 : INTERRUPT CONTROL/STATUS REGISTER (INTCSR; 0X4C)..............................................16
TABLE 5-2 : LOCAL BUS LITTLE/BIG ENDIAN.............................................................................................17
TABLE 7-1 : MEZZANINE P14 CONNECTOR ...............................................................................................20

TPMC316 User Manual Issue 1.0.5 Page 6 of 20
1 Product Description
The TPMC316 is a conduction cooled single-width 32 bit PMC module and provides two complete
CAN bus interfaces using two Intel 82527 CAN controllers. Both channels are completely independent
and support CAN specification 2.0 part A and B (standard 11 bit identifier and extended 29 bit
identifier).
Each physical interface is optically isolated from the CAN controller and powered by an on board
DC/DC converter and a voltage regulator. Two versions of physical interface are available: the
TPMC316-10 supports CAN high speed for each of the two channels. The TPMC316-11 provides a
modified RS485 interface for each of the two channels. The bus line termination can be enabled or
disabled for each channel by solder pads (disabled per default).
The TPMC316 has no front panel. It uses P14 I/O connector with the same pin assignment as the
TPMC816.
Local
Control
Logic
PCI
Controller
CAN Bus Interface
CAN
Controller
82527
CAN
Controller
82527
CAN Bus Interface
P11
P12 P14
Optocoupler
DC/DC Converter
Optocoupler
DC/DC Converter
Figure 1-1 : Block Diagram

TPMC316 User Manual Issue 1.0.5 Page 7 of 20
2 Technical Specification
PMC Interface
Mechanical Interface PCI Mezzanine Card (PMC) Interface
Single Size
Electrical Interface PCI Rev. 2.1 compliant
33 MHz / 32 bit PCI
3.3V and 5V PCI Signaling Voltage
On Board Devices
PCI Target Chip PCI9030 (PLX Technology)
CAN Controller Intel 82527
I/O Interface
Number of Channels 2
Physical Interface TPMC316-10: CAN High Speed (according to ISO 11898)
TPMC316-11: modified RS485
Bus Line Termination On board 120 ohms, disabled per default
Transfer Rate Up to 1 Mbps at bus line length of up to 40 m
Minimum Baud Rate for the TPMC316-10 is 60 Kbps (TJA1050
CAN Transceiver Timeout Feature)
Isolation CAN bus isolated by optocouplers and DC/DC converter for each
channel
I/O Connector PMC P14 I/O (64 pin Mezzanine Connector)
Physical Data
Power Requirements 120mA typical @ +3.3V DC
200mA typical @ +5V DC
Note:
Both CAN channels connect to each other and termination active.
Temperature Range Operating
Storage -40 °C to +85 °C -40°C to +85°C
MTBF TPMC316-10: 840000 h
TPMC316-11: 821000 h
Humidity 5 – 95 % non-condensing
Weight 61 g
Table 2-1 : Technical Specification

TPMC316 User Manual Issue 1.0.5 Page 8 of 20
3 Local Space Addressing
3.1PCI9030 Local Space Configuration
The local on board addressable regions are accessed from the PCI side by using the PCI9030 local
spaces.
PCI9030
Local
Space
PCI9030
PCI Base Address
(Offset in PCI
Configuration
Space)
PCI
Space
Mapping
Size
(Byte) Port
Width
(Bit)
Endian
Mode Description
0 0 (0x10) MEM 128 32 LITTLE
Local Configuration
Registers
1 1(0x14) I/O 128 32 LITTLE
Local Configuration
Registers
2 2 (0x18) MEM 512 8 LITTLE Local Address Space 0
3 3 (0x1C) - - - - Local Address Space 1
4 4 (0x20) - - - - Local Address Space 2
5 5 (0x24) - - - - Local Address Space 3
6 6 (0x30) - - - -
Local Expansion ROM
Space
Table 3-1 : PCI9030 Local Space Configuration
3.2Local Address Space 0
The complete register sets of the two CAN controllers of the TPMC316 are accessible in the memory
space of the PMC module.
Address range: PCI Base Address 2 for Local Address Space 0 + (0x0000 to 0x00FF)
CAN Controller channel 0 CANCH0: PCI Base Address 2 + (0x0000 to 0x00FF)
CAN Controller channel 1 CANCH1: PCI Base Address 2 + (0x0100 to 0x01FF)

TPMC316 User Manual Issue 1.0.5 Page 9 of 20
3.3CAN Controller Address Map
Address Description
CAN Controller Channel 0 CANCH0
0x0000 Control Register
0x0001 Status Register
0x0002 CPU Interface Register
0x0003 Reserved
0x0004-0x0005 High Speed Read Register
0x0006-0x0007 Global Mask – Standard
0x0008-0x000B Global Mask – Extended
0x000C-0x000F Message 15 Mask
0x0010-0x001E Message 1
0x001F CLKOUT Register
0x0020-0x002E Message 2
0x002F Bus Configuration Register
0x0030-0x003E Message 3
0x003F Bit Timing Register 0
0x0040-0x004E Message 4
0x004F Bit Timing Register 1
0x0050-0x005E Message 5
0x005F Interrupt Register
0x0060-0x006E Message 6
0x006F Reserved
0x0070-0x007E Message 7
0x007F Reserved
0x0080-0x008E Message 8
0x008F Reserved
0x0090-0x009E Message 9
0x009F P1CONF
0x00A0-0x00AE Message A
0x00AF P2CONF
0x00B0-0x00BE Message B
0x00BF P1IN
0x00C0-0x00CE Message C
0x00CF P2IN
0x00D0-0x00DE Message D
0x00DF P1OUT
0x00E0-0x00EE Message E
0x00EF P2OUT

TPMC316 User Manual Issue 1.0.5 Page 10 of 20
Address Description
0x00F0-0x00FE Message F
0x00FF Serial Reset Address
Table 3-2 : Memory Address Map CAN Controller Channel 0 CANCH0
Address Description
CAN Controller Channel 1 CANCH1
0x0000 Control Register
0x0101 Status Register
0x0102 CPU Interface Register
0x0103 Reserved
0x0104-0x0105 High Speed Read Register
0x0106-0x0107 Global Mask – Standard
0x0108-0x010B Global Mask – Extended
0x010C-0x010F Message 15 Mask
0x0110-0x011E Message 1
0x011F CLKOUT Register
0x0120-0x012E Message 2
0x012F Bus Configuration Register
0x0130-0x013E Message 3
0x013F Bit Timing Register 0
0x0140-0x014E Message 4
0x014F Bit Timing Register 1
0x0150-0x015E Message 5
0x015F Interrupt Register
0x0160-0x016E Message 6
0x016F Reserved
0x0170-0x017E Message 7
0x017F Reserved
0x0180-0x018E Message 8
0x018F Reserved
0x0190-0x019E Message 9
0x019F P1CONF
0x01A0-0x01AE Message A
0x01AF P2CONF
0x01B0-0x01BE Message B
0x01BF P1IN
0x01C0-0x01CE Message C
0x01CF P2IN

TPMC316 User Manual Issue 1.0.5 Page 11 of 20
Address Description
0x01D0-0x01DE Message D
0x01DF P1OUT
0x01E0-0x01EE Message E
0x01EF P2OUT
0x01F0-0x01FE Message F
0x01FF Serial Reset Address
Table 3-3 : Memory Address Map CAN Controller Channel 1 CANCH1

TPMC316 User Manual Issue 1.0.5 Page 12 of 20
4 PCI9030 Target Chip
4.1PCI Configuration Registers (CFG)
4.1.1 PCI9030 Header
Write ‘0’ to all unused (Reserved) bitsPCI CFG
Register
Address 31 24 23 16 15 8 7 0
PCI
writeable Initial Values (Hex Values)
0x00 Device ID Vendor ID N 013C 1498
0x04 Status Command Y 0280 0000
0x08 Class Code Revision ID N 028000 0A
0x0C BIST Header Type
PCI Latency
Timer Cache Line Size Y[7:0] 00 00 00 00
0x10 PCI Base Address 0 for MEM Mapped Config. Registers Y FFFFFF80
0x14 PCI Base Address 1 for I/O Mapped Config. Registers Y FFFFFF81
0x18 PCI Base Address 2 for Local Address Space 0 Y FFFFFE00
0x1C PCI Base Address 3 for Local Address Space 1 Y 00000000
0x20 PCI Base Address 4 for Local Address Space 2 Y 00000000
0x24 PCI Base Address 5 for Local Address Space 3 Y 00000000
0x28 PCI CardBus Information Structure Pointer N 00000000
0x2C Subsystem ID Subsystem Vendor ID N 000A 1498
0x30 PCI Base Address for Local Expansion ROM Y 00000000
0x34 Reserved New Cap. Ptr. N 000000 40
0x38 Reserved N 00000000
0x3C Max_Lat Min_Gnt Interrupt Pin Interrupt Line Y[7:0] 00 00 01 00
0x40 PM Cap. PM Nxt Cap. PM Cap. ID N 4801 48 01
0x44 PM Data PM CSR EXT PM CSR Y 00 00 0000
0x48 Reserved HS CSR HS Nxt Cap. HS Cap. ID Y[23:16] 00 00 0000
0x4C VPD Address VPD Nxt Cap. VPD Cap. ID Y[31:16] 0000 00 03
0x50 VPD Data Y 00000000
Table 4-1 : PCI9030 Header

TPMC316 User Manual Issue 1.0.5 Page 13 of 20
4.1.2 PCI Base Address Initialization
PCI Base Address Initialization is scope of the PCI host software.
PCI9030 PCI Base Address Initialization:
1. Write 0xFFFF_FFFF to the PCI9030 PCI Base Address Register.
2. Read back the PCI9030 PCI Base Address Register.
3. For PCI Base Address Registers 0:5, check bit 0 for PCI Address Space.
Bit 0 = '0' requires PCI Memory Space mapping
Bit 0 = '1' requires PCI I/O Space mapping
For the PCI Expansion ROM Base Address Register, check bit 0 for usage.
Bit 0 = ‘0’: Expansion ROM not used
Bit 0 = ‘1’: Expansion ROM used
4. For PCI I/O Space mapping, starting at bit location 2, the first bit set determines the size of the
required PCI I/O Space size.
For PCI Memory Space mapping, starting at bit location 4, the first bit set to '1' determines the size
of the required PCI Memory Space size.
For PCI Expansion ROM mapping, starting at bit location 11, the first bit set to '1' determines the
required PCI Expansion ROM size.
For example, if bit 5 of a PCI Base Address Register is detected as the first bit set to ‘1’, the
PCI9030 is requesting a 32 byte space (address bits 4:0 are not part of base address decoding).
5. Determine the base address and write the base address to the PCI9030 PCI Base Address
Register. For PCI Memory Space mapping the mapped address region must comply with the
definition of bits 3:1 of the PCI9030 PCI Base Address Register.
After programming the PCI9030 PCI Base Address Registers, the software must enable the
PCI9030 for PCI I/O and/or PCI Memory Space access in the PCI9030 PCI Command Register
(Offset 0x04). To enable PCI I/O Space access to the PCI9030, set bit 0 to '1'. To enable PCI
Memory Space access to the PCI9030, set bit 1 to '1'.
Offset in Config. Description Usage
0x10 PCI9030 LCR’s MEM Used
0x14 PCI9030 LCR’s I/O Used
0x18 PCI9030 Local Space 0 Used
0x1C PCI9030 Local Space 1 Not used
0x30 Expansion ROM Not used
Table 4-2 : PCI9030 Base Address Usage

TPMC316 User Manual Issue 1.0.5 Page 14 of 20
4.2Local Configuration Register (LCR)
After reset, the PCI9030 Local Configuration Registers are loaded from the on board serial
configuration EEPROM.
The PCI base address for the PCI9030 Local Configuration Registers is PCI9030 PCI Base
Address 0 (PCI Memory Space) (Offset 0x10 in the PCI9030 PCI Configuration Register Space)
or PCI9030 PCI Base Address 1 (PCI I/O Space) (Offset 0x14 in the PCI9030 PCI Configuration
Register Space).
Do not change hardware dependent bit settings in the PCI9030 Local Configuration Registers.
Offset from
PCI Base
Address
Register Value Description
0x00 Local Address Space 0 Range 0x0FFFFFF0 Memory Space CAN
0x04 Local Address Space 1 Range 0x0FFFFFC0 Not used
0x08 Local Address Space 2 Range 0x0FFFFE00 Not used
0x0C Local Address Space 3 Range 0x00000000 Not used
0x10 Local Exp. ROM Range 0x00000000 Not used
0x14 Local Re-map Register Space 0 0x00000001 Enabled, Offset 0
0x18 Local Re-map Register Space 1 0x00001001 Not used
0x1C Local Re-map Register Space 2 0x00002001 Not used
0x20 Local Re-map Register Space 3 0x00000000 Not used
0x24 Local Re-map Register ROM 0x00000000 Not used
0x28 Local Address Space 0 Descriptor 0x1500C0A0 Local Timing
0x2C Local Address Space 1 Descriptor 0x1580C062 Not used
0x30 Local Address Space 2 Descriptor 0x15024120 Not used
0x34 Local Address Space 3 Descriptor 0x00000000 Not used
0x38 Local Exp. ROM Descriptor 0x00000000 Not used
0x3C Chip Select 0 Base Address 0x00000009 Chip select CAN0
0x40 Chip Select 1 Base Address 0x00001021 Chip select CAN1
0x44 Chip Select 2 Base Address 0x00002081 Not used
0x48 Chip Select 3 Base Address 0x00002181 Not used
0x4C Interrupt Control/Status 0x0041 Interrupt Configuration
0x4E EEPROM Write Protect Boundary 0x0030 No write protection
0x50 Miscellaneous Control Register 0x00780000 Retry Delay = max.
0x54 General Purpose I/O Control 0x026DB6D2 All pins are outputs
0x70 Hidden1 Power Management data
select 0x00000000 Not used
0x74 Hidden 2 Power Management data
scale 0x00000000 Not used
Table 4-3 : PCI9030 Local Configuration Register

TPMC316 User Manual Issue 1.0.5 Page 15 of 20
4.3 Configuration EEPROM
After power-on or PCI reset, the PCI9030 loads initial configuration register data from the on board
configuration EEPROM.
The configuration EEPROM contains the following configuration data:
•Address 0x00 to 0x27 : PCI9030 PCI Configuration Register Values
•Address 0x28 to 0x87 : PCI9030 Local Configuration Register Values
See the PCI9030 Manual for more information.
Address Offset
0x00 0x02 0x04 0x06 0x08 0x0A 0x0C 0x0E
0x00 0x013C 0x1498 0x0280 0x0000 0x0280 0x000A s.b. 0x1498
0x10 0x0000 0x0040 0x0000 0x0100 0x4801 0x4801 0x0000 0x0000
0x20 0x0000 0x4C06 0x0000 0x0003 0x0FFF 0xFE00 0x0000 0x0000
0x30 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0001
0x40 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000
0x50 0x5400 0xC042 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000
0x60 0x0000 0x0000 0x0000 0x0081 0x0000 0x0181 0x0000 0x0000
0x70 0x0000 0x0000 0x0030 0x0049 0x0078 0x0000 0x0224 0xA492
0x80 0x0000 0x0000 0x0000 0x0000 0xFFFF 0xFFFF 0xFFFF 0xFFFF
0x90 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF
0xA0 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF
0xB0 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF
0xC0 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF
0xD0 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF
0xE0 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF
0xF0 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF 0xFFFF
Table 4-4 : Configuration EEPROM TPMC316-xx
Subsystem-ID Value (Offset 0x0C): TPMC316-10 0x000A
TPMC316-11 0x000B

TPMC316 User Manual Issue 1.0.5 Page 16 of 20
5 Configuration Hints
5.1PCI Interrupt Control/Status
Both CAN controllers generate interrupts at pin INTA# of the PCI bus. The interrupt status can be read
at the Interrupt Status Register INTCSR of the PCI controller PCI9030.
Bit Description Access Reset
Value
31:8 unused R 0
7 Software Interrupt R/W 0
6 PCI Interrupt Enable R/W 1
5 CAN Controller 1 Interrupt Status R 0
4 Local Interrupt 2 Polarity R/W 0
3 Local Interrupt 2 Enable R/W 1
2 CAN Controller 0 Interrupt Status R 0
1 Local Interrupt 1 Polarity R/W 0
0 Local Interrupt 1 Enable R/W 1
Table 5-1 : Interrupt Control/Status Register (INTCSR; 0x4C)
5.2Local Software Reset
The PCI9030 Local Reset Output LRESETo# is used to reset the on board local logic.
The PCI9030 local reset is active during PCI reset or if the PCI Adapter Software Reset bit is set in the
PCI9030 local configuration register CNTRL (offset 0x50).
CNTRL[30] PCI Adapter Software Reset:
Value of ‘1’ resets the PCI9030 and issues a reset to the Local Bus (LRESETo# asserted). The
PCI9030 remains in this reset condition until the PCI Host clears this bit. The contents of the PCI9030
PCI and Local Configuration Registers are not reset. The PCI9030 PCI Interface is not reset.

TPMC316 User Manual Issue 1.0.5 Page 17 of 20
5.3Big / Little Endian
•PCI – Bus (Little Endian)
Byte 0 AD[7..0]
Byte 1 AD[15..8]
Byte 2 AD[23..16]
Byte 3 AD[31..24]
•Every Local Address Space (0...3) and the Expansion ROM Space can be programmed to operate
in Big or Little Endian Mode.
Big Endian Little Endian
32 Bit 32 Bit
Byte 0 D[31..24] Byte 0 D[7..0]
Byte 1 D[23..16] Byte 1 D[15..8]
Byte 2 D[15..8] Byte 2 D[23..16]
Byte 3 D[7..0] Byte 3 D[31..24]
16 Bit upper lane 16 Bit
Byte 0 D[31..24] Byte 0 D[7..0]
Byte 1 D[23..16] Byte 1 D[15..8]
16 Bit lower lane
Byte 0 D[15..8]
Byte 1 D[7..0]
8 Bit upper lane 8 Bit
Byte 0 D[31..24] Byte 0 D[7..0]
8 Bit lower lane
Byte 0 D[7..0]
Table 5-2 : Local Bus Little/Big Endian
Standard use of the TPMC316:
Local Address Space 0 16 bit bus in Little Endian Mode
Local Address Space 1 not used
Local Address Space 2 not used
Local Address Space 3 not used
Expansion ROM Space not used
To change the Endian Mode use the Local Configuration Registers for the corresponding Space. Bit
24 of the according register sets the mode. A value of 1 indicates Big Endian and a value of 0
indicates Little Endian.
For further information please refer to the PCI9030 manual which is also part of the TPMC316-ED
Engineering Documentation.

TPMC316 User Manual Issue 1.0.5 Page 18 of 20
Use the PCI Base Address 0 + Offset or PCI Base Address 1 + Offset:
Short cut Offset Name
LAS0BRD 0x28 Local Address Space 0 Bus Region Description Register
LAS1BRD 0x2C Local Address Space 0 Bus Region Description Register
LAS2BRD 0x30 Local Address Space 0 Bus Region Description Register
LAS3BRD 0x34 Local Address Space 0 Bus Region Description Register
EROMBRD 0x38 Expansion ROM Bus Region Description Register
You could also use the PCI - Base Address 1 I/O Mapped Configuration Registers.

TPMC316 User Manual Issue 1.0.5 Page 19 of 20
6 Installation
6.1CAN bus Termination
Each end of a CAN bus must be terminated by a 120 ohms resistor between the CAN bus lines CAN
high and CAN low.
This termination could be activated by closing the soldering connection LB2 and LB1. There is one
solder connection for each channel.
Solder connection LB2 closed: bus line termination for CAN bus channel 0 active
Solder connection LB1 closed: bus line termination for CAN bus channel 1 active.
J1
34
2
5 1
6
78
LB2
LB1
Figure 6-1 : Soldering Connection Location LB1 – LB2
6.2Physical Interface
The TPMC316-10 provides a CAN High Speed interface and the TPMC316-11 a modified RS485
interface.

TPMC316 User Manual Issue 1.0.5 Page 20 of 20
7 Pin Assignment – I/O Connector
7.1Mezzanine Card Connector P14
Pin Signal Function
1 NC
2 Ground channel 0
3 Low level CAN voltage input/output channel 0 CAN High Speed or modified RS485
4 High level CAN voltage input/output channel 0 CAN High Speed or modified RS485
5 Ground channel 0
6 NC
7 NC
8 NC
9 NC
10 NC
11 Ground channel 1
12 Low level CAN voltage input/output channel 1 CAN High Speed or modified RS485
13 High level CAN voltage input/output channel 1 CAN High Speed or modified RS485
14 Ground channel 1
15 NC
16…32 NC
Table 7-1 : Mezzanine P14 Connector