Mitsubishi Microcomputers
12
2001-5-14 Rev.1.0
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
32170 Group, 32174 Group
Table 7 Description of Pin Functions (3/5)
Type
Pin name
Description
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
transmit/receive
When channel 0 is in CSIO mode:
clock
Transmit/receive clock input when external clock is selected
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
transmit/receive
When channel 1 is in CSIO mode:
clock
Transmit/receive clock input when external clock is selected
input/output
Transmit/receive clock output when internal clock is selected
SCLKI4/
UART transmit/ Input/output
When channel 4 is in UART mode:
SCLKO4
receive clock
Clock output derived from BRG output by dividing it by 2
output or CSIO
transmit/receive
When channel 4 is in CSIO mode:
clock
Transmit/receive clock input when external clock is selected
input/output
Transmit/receive clock output when internal clock is selected
SCLKI5
UART transmit/ Input/output
When channel 5 is in UART mode:
SCLKO5
receive clock
Clock output derived from BRG output by dividing it by 2
output or CSIO
transmit/receive
When channel 5 is in CSIO mode:
clock
Transmit/receive clock input when external clock is selected
input/output
Transmit/receive clock output when internal clock is selected
TXD0
Transmit data
Outpt
Transmit data output pin for serial I/O channel 0
RXD0
Receive data
Input
Receive data input pin for serial I/O channel 0
TXD1
Transmit data
Output
Transmit data output pin for serial I/O channel 1
RXD1
Receive data
Input
Receive data input pin for serial I/O channel 1
TXD2
Transmit data
Output
Transmit data output pin for serial I/O channel 2
RXD2
Receive data
Input
Receive data input pin for serial I/O channel 2
TXD3
Transmit data
Output
Transmit data output pin for serial I/O channel 3
RXD3
Receive data
Input
Receive data input pin for serial I/O channel 3
TXD4
Transmit data
Output
Transmit data output pin for serial I/O channel 4
RXD4
Receive data
Input
Receive data input pin for serial I/O channel 4
TXD5
Transmit data
Output
Transmit data output pin for serial I/O channel 5
RXD5
Receive data
Input
Receive data input pin for serial I/O channel 5