
9
32176 Group
Mitsubishi Microcomputers
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
Under Development
Jan. 30, 2003
Rev.1.4
Table 6. Description of Pin Function (3/4)
Type
Pin
Name
Input/Output
Function
Serial I/O
SCLKI0/
UART transmit/
Input/output
When Channel 0 is in UART mode:
SCLKO0
receive clock
Clock output derived from BRG output by dividing it by 2
output or CSIO
When Channel 0 is in CSIO mode:
transmit/receive
Transmit/receive clock input when external clock is selected
clock input/output
Transmit/receive clock output when internal clock is selected
SCLKI1/
UART transmit/
Input/output
When Channel 1 is in UART mode:
SCLKO1
receive clock
Clock output derived from BRG output by dividing it by 2
output or CSIO
When Channel 1 is in CSIO mode:
transmit/receive
Transmit/receive clock input when external clock is selected
clock input/output
Transmit/receive clock output when internal clock is selected
TXD0
Transmit data
Output
Transmit data output pin of serial I/O channel 0
RXD0
Receive data
Input
Receive data input pin of serial I/O channel 0
TXD1
Transmit data
Output
Transmit data output pin of serial I/O channel 1
RXD1
Receive data
Input
Receive data input pin of serial I/O channel 1
TXD2
Transmit data
Output
Transmit data output pin of serial I/O channel 2
RXD2
Receive data
Input
Receive data input pin of serial I/O channel 2
TXD3
Transmit data
Output
Transmit data output pin of serial I/O channel 3
RXD3
Receive data
Input
Receive data input pin of serial I/O channel 3
Real-time
RTDTXD
Transmit data
Output
Serial data output pin of the Real-time Debugger
Debugger
RTDRXD
Receive data
Input
Serial data input pin of the Real-time Debugger
RTDCLK
Clock input
Input
Serial data transmit/receive clock input pin of the Real-time Debugger
RTDACK
Acknowledge
Output
This pin outputs a low pulse synchronously with the Real-time
Debugger’s first clock of serial data output word. The low pulse width
indicates the type of the command/data the Real-time Debugger has
received.
CAN
CTX0, CTX1
Transmit data
Output
Data output pin from CAN module.
CRX0, CRX1
Receive data
Input
Data input pin to CAN module.
JTAG
JTMS
Test mode
Input
Test select input for controlling the test circuit’s state transition.
JTCK
Clock
Input
Clock input to the debugger module and test circuit.
JTRST
Test reset
Input
Test reset input for initializing the test circuit asynchronously.
JTDO
Serial output
Output
Serial output of test instruction code or test data.
JTDI
Serial input
Input
Serial input of test instruction code or test data.