Rev. 6.2
Micronet SmarTab 8 – Hardware Guide
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Figure 17: Molex 10-Pin Male Connector
SAE CANBus
The SmarTab 8 enhanced cradle provides two SAE CANBus ports that enable the connection of a variety of
vehicle peripherals, such as the vehicle's computer, vehicle's sensors and so on.
The provided CANBus V2.0B supports the following functionality:
▪
Software configurable BAUD rate Supported
bitrates:
10 Kbits/sec, 20 Kbits/sec, 33.33 Kbits/sec (only supported by CAN2 and not by CAN1), 50
Kbits/sec, 100 Kbits/sec, 125 Kbits/sec, 250 Kbits/sec, 500 Kbits/sec, 800 Kbits/sec, 1 Meg
bits/sec.
▪
Software configurable Transmission mode (Silent, Normal)
▪
Extended, Standard, and Remote frame formats are supported.
o
29-bit and 11-bit identifiers
o
0
– 8-byte length in the data field
▪
24 Extended/Standard configurable filter ids
▪
16 Extended/Standard configurable mask ids
Single Wire CAN
The SmarTab 8 enhanced cradle provides SAE J2411 single wire for CAN network applications with low
requirements regarding bit rate and bus length. The communication takes place via just one bus line with a
nominal data rate of 33.3 Kbit/s (83,3 Kbit/s in a high-speed mode for diagnostics).
SAE J1708
The SmarTab 8 enhanced cradle provides one SAE J1708 port. The SAE J1708 is a standard used for serial
communications between ECUs on a heavy-duty vehicle and between a computer and the vehicle. With
respect to the Open System Interconnection model (OSI), J1708 defines the physical layer.
Serial Communication
The enhanced cradle supports four serial communication ports for external devices connections, and a
debug port connected to the MCU Co-Processor. These ports support various hardware and software flow
control functions. For more information about the interface signals, please see the signal map
Pinout by
Functionality
.
