M16C6C Datasheet, PDF (15/94 Pages) Renesas Technology Corp – RENESAS MCU

M16C/6C Group
1. Overview
Table 1.8 Pin Functions (3/3)
Signal Name Pin Name
I/O
Power
Supply
Description
UART0 to
UART5
I²C mode
SDA0 to SDA5 I/O
SCL0 to SCL5 I/O
VCC1
VCC1
Serial data I/O for I²C mode.⁽²⁾
Transmit/receive clock I/O for I²C mode.⁽²⁾
Multi-master
I²C-bus
interface
SDAMM
SCLMM
I/O
VCC1 Serial data I/O (N-channel open drain output).
I/O
VCC1 Transmit/receive clock I/O (N-channel open drain output).
ATTACH
O
UVCC Output used for D+ 1.5 kΩ pull-up
VbusDTCT
I
UVCC Input the power supply signal from a host PC
USB module
UVCC
I
Input power supply for pins ATTACH, D+ and D-
D+
I/O
UVCC USB D+ input/output
Reference
voltage input
D-
VREF
I/O
UVCC USB D- input/output
I
VCC1 Reference voltage input for the A/D and D/A converters.
A/D
converter
AN0 to AN7
I
AN0_0 to AN0_7
AN2_0 to AN2_7
I
ADTRG
I
ANEX0, ANEX1 I
VCC1
VCC2
VCC1
VCC1
Analog input for the A/D converter.
External A/D trigger input.
Extended analog input for the A/D converter.
D/A
converter
DA0, DA1
O
VCC1 Output for the D/A converter.
I/O ports
P0_0 to P0_7
P1_0 to P1_7
P2_0 to P2_7
P3_0 to P3_7
I/O
P4_0 to P4_7
P5_0 to P5_7
P6_0 to P6_7
P7_0 to P7_7
P8_0 to P8_7 I/O
P9_0 to P9_7
P10_0 to P10_7
VCC2
8-bit CMOS I/O ports. A direction register determines whether
each pin is used as an input port or an output port. A pull-up
resistor may be enabled or disabled for input ports in 4-bit
units.
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.
Notes:
1. Contact the oscillator manufacturer regarding the oscillation characteristics.
2. TXD2, SDA2, and SCL2 are N-channel open drain output pins. TXDi (i = 0, 1, 3 to 5), SDAi, and SCLi can be
selected as CMOS output pins or N-channel open drain output pins.
REJ03B0277-0100 Rev.1.00 Jul.15, 2009
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