Interconnect Board Description
KIT33912EVME System Basis Chip with LIN Tranceiver Setup Instructions, Rev. 2.0
Freescale Semiconductor
27
Chapter 9 Interconnect Board Description
9.1
Overview
This chapter gives a basic description of the Interconnect Board. The following sections provide the basic information:
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J201 Background Debug Mode (BDM)
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CON4 The MCU Input Output Pins
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9.2
J1 RS232
The RS232 connector J1 allows connection to a PC.
shows the terminal definitions for the J1 connector.
Table 9-1. J1 Serial Peripheral Interface Terminal Definitions
Terminal
Terminal Name
Definition
1
Not used
Carrier detect.
2
TXD
Transmit data from MCU to PC.
3
RXD
Received data from PC to MCU.
4
Not used
Data terminal ready.
5
GND
Ground.
6
Not used
Data set ready, Carrier detect.
7
NC
No connect.
8
NC
No connect.
9
NC
No connect.
9.3
J201 Background Debug Mode (BDM)
The MCU contains a single wire background debug interface that supports in-circuit programming of on-chip nonvolatile memory
and sophisticated non-intrusive debug capabilities.
shows the standard definition for a 6 pin connector.
Table 9-2. J201 Program Debug Terminal Definition
Terminal
Terminal Name
Definition
1
BKGD
Background debug.
2
GND
Ground.
3
NC
No connect.
4
RESET
Reset.
5
NC
No connect.
6
VDD
+5V voltage supply.