OVERVIEW
1.3 Pin Functions
1
Table 1.3.1 Description of Pin Functions (4/5)
Type
Pin Name
TXD0
Signal Name
Transmit data
Received data
Transmit data
Received data
Transmit data
Received data
Transmit data
Received data
Transmit data
Received data
Transmit data
Received data
Input/Output Description
Serial I/O
Output
Input
Transmit data output pin for serial I/O channel 0.
Received data input pin for serial I/O channel 0.
RXD0
TXD1
Output
Input
Transmit data output pin for serial I/O channel 1.
Received data input pin for serial I/O channel 1.
Transmit data output pin for serial I/O channel 2.
Received data input pin for serial I/O channel 2.
Transmit data output pin for serial I/O channel 3.
Received data input pin for serial I/O channel 3.
Transmit data output pin for serial I/O channel 4.
Received data input pin for serial I/O channel 4.
Transmit data output pin for serial I/O channel 5.
Received data input pin for serial I/O channel 5.
Serial data output pin for the real-time debugger.
Serial data input pin for the real-time debugger.
RXD1
TXD2
Output
Input
RXD2
TXD3
Output
Input
RXD3
TXD4
Output
Input
RXD4
TXD5
Output
Input
RXD5
Real-time
debugger
(RTD)
RTDTXD
RTDRXD
RTDCLK
RTD transmit data Output
RTD received data Input
RTD clock input
Input
Serial data transmit/receive clock input pin for the real-time
debugger.
RTDACK
RTD acknowledge Output
A low-level pulse is output from this pin synchronously with
the start clock for the real-time debugger’s serial data output
word. The low-level pulse width indicates the type of command/
data received by the real-time debugger.
CAN
CTX0, CTX1 Transmit data
CRX0, CRX1 Received data
Output
Input
This pin outputs data from the CAN module.
This pin accepts as input the data for the CAN module.
JTAG
JTMS
Test mode select
Input
Test mode select input to control the state transition of the
test circuit.
JTCK
Test clock
Test reset
Input
Input
Clock input for the debug module and test circuit.
JTRST
Test reset input to initialize the test circuit asynchronously
with device operation.
JTDI
Test data input
Test data output
Input
This pin accepts as input the test instruction code or test data
that is serially received.
JTDO
Output
This pin outputs the test instruction code or test data serially.
32180 Group User’s Manual (Rev.1.0)
1-12
RENESAS [ RENESAS TECHNOLOGY CORP ]
