Datasheet

RX610 Group 1. Overview
R01DS0097EJ0120 Rev.1.20 Page 26 of 84
Feb 20, 2013
Classifications
Pin Name
I/O
Description
Analog power supply AVCC Input Analog power supply pin for the A/D and D/A converters.
When the A/D and D/A converters are not in use, connect this
pin to the system power supply.
AVSS Input Ground pin for the A/D and D/A converters. Connect this pin to
the system power supply (0 V).
VREFH Input Reference power supply pin for the A/D and D/A converters.
When the A/D and D/A converters are not in use, connect this
pin to the system power supply.
VREFL Input Reference ground pin for the A/D and D/A converters. Make
sure to connect this pin to the analog reference power supply
(0 V). When the A/D and D/A converters are not in use,
connect this pin to the system power supply (0 V). For details,
see section 23.6.7, Ranges of Settings for Analog Power
Supply and Other Pins.
I/O ports
P00 to P05
I/O
6-bit input/output pins
P10 to P17
I/O
8-bit input/output pins
P20 to P27
I/O
8-bit input/output pins
P30 to P37
I/O
8-bit input/output pins
P40 to P47 I/O 8-bit input/output pins
P50 to P57
I/O
8-bit input/output pins. (P53 is an input-only pin.)
P60 to P67
I/O
8-bit input/output pins
P70 to P77
I/O
8-bit input/output pins
P80 to P86
I/O
7-bit input/output pins
P90 to P97
I/O
8-bit input/output pins
PA0 to PA7 I/O 8-bit input/output pins
PB0 to PB7
I/O
8-bit input/output pins
PC0 to PC7
I/O
8-bit input/output pins
PD0 to PD7
I/O
8-bit input/output pins
PE0 to PE7
I/O
8-bit input/output pins
PF0 to PF6
I/O
7-bit input/output pins
PG0 to PG7 I/O 8-bit input/output pins
PH0 to PH7
I/O
8-bit input/output pins
Note 1: The A0 and BC0# pin functions are multiplexed on the same pin: the A0 pin is valid in byte-write mode and the BC0# pin
becomes valid in single write-strobe mode. The setting for an eight-bit external bus width is prohibited in single write-strobe
mode. For other multiplexed pin functions, refer to section 14, I/O Ports.
Note 2: The BC0# and BC1# signals are valid in both reading and writing.