
M16C/6S1 Group
1. Overview
Under development Preliminary document
Specifications in this document are tentative and subject to change.
R01DS0054EJ0050 Rev.0.50
Jun 14, 2011
Note:
1.
TXD, SDA2, SCL2, SDAMM, and SCLMM are N-channel open drain output pins. TXDi (i = 0, 1, 3, 6), SDAi (i =
0, 1, 5, 6), and SCLi (i = 0, 1, 5, 6) can be selected as CMOS output pins or N-channel open drain output pins by
a program.
Note:
1.
On-chip PLC modem should be controlled by DLL software released by Renesas. Do not access the PLC control
registers directly by any user program.
Table 1.10
Pin Functions (2/2)
Signal Name
Pin Name
I/O
Power
Supply
Description
UART0 to UART2,
UART5, UART6
I2C mode
SDA2, SDA5
I/O
VCC1
Serial data I/O for I2C mode.
SDA0, SDA1, SDA6
I/O
VCC2
SCL2, SCL5
I/O
VCC1
Transmit/receive clock I/O for I2C mode.
SCL0, SCL1, SCL6
I/O
VCC2
Serial interface
SI/O3, SI/O4
CLK3, CLK4
I/O
VCC1
Transmit/receive clock I/O.
SIN3, SIN4
I
VCC1
Serial data input.
SOUT3, SOUT4
O
VCC1
Serial data output.
Multi-master
I2C-bus interface
SDAMM
I/O
VCC1
Serial data I/O.
(Output is N-channel open drain)
SCLMM
I/O
VCC1
Transmit/receive clock I/O.
(Output is N-channel open drain)
Reference voltage
input
VREF
I
VCC1
Reference voltage input for the A/D converter.
A/D converter
AN0 to AN7
I
VCC1
Analog input for the A/D converter.
AN0_0 to AN0_7
I
VCC2
ADTRG
I
VCC1
External activation source input.
ANEX0, ANEX1
I
VCC1
Extended analog input for the AD converter.
I/O ports
P0_0 to P0_7,
P1_0 to P1_7,
P6_0 to P6_7
I/O
VCC2
8-bit CMOS I/O ports. Each port has a direction
register, allowing each pin in the port to be directed
for input or output individually. A pull-up resistor
may be enabled or disabled for input ports in 4-bit
units.
P7_0 to P7_7,
P8_0 to P8_7,
P9_0 to P9_7,
P10_0 to P10_7
I/O
VCC1
8-bit I/O ports having equivalent functions to P0.
However, P7_0, P7_1, and P8_5 are N-channel
open drain output ports.
No pull-up resistor is provided. P8_5 is an input
port for verifying the NMI pin level and shares a pin
with NMI.
Table 1.11
Internal Connection Pin Functions
Signal Name
Pin Name
I/O
Description
Internal interrupt input
INT0, INT6, INT7
I
INT interrupt input from PLC modem.
Internal timer A
connection
TA0OUT
I/O
Timer A0 I/O from/to PLC modem.
TA0IN
I
Timer A0 input from PLC modem.
Internal serial connection
TXD7
O
Serial data output to PLC modem.
RXD7
I
Serial data input from PLC modem.
CLK7
I/O
Transmit/receive clock I/O from/to PLC modem.
Internal ports
P2_0 to P2_7,
P3_0 to P3_7,
P4_0 to P4_7,
P5_0 to P5_7
I/O
Ports to connect PLC modem. Used as addresses, data,
control signals, and status signals to access registers of
PLC modem and AFE.