Renesas M32R/ECU Series

15
15-8
EXTERNAL BUS INTERFACE
32180 Group User’s Manual (Rev.1.0)
15.2 External Bus Interface Related Registers
15.2.2 Port Peripheral Output Select Register
To use ports P224 and P225 as external access signal pins, their pin functions must be set using the P22
Peripheral Output Select Register, because the A11 and CS2# pins and the A12 and CS3# pins are shared.
P22 Peripheral Output Select Register (P22SMOD) <Address: H’0080 0776>
123456b7b0
P224
SM
D
P22
5
SM
D
0
0
0
0
0
0
0
0
<After reset: H’00>
b Bit Name Function R W
0–3 No function assigned. Fix to "0". 00
4 P224SMD 0: A11 R W
Port P224 peripheral output select mode bit 1: CS2#
5 P225SMD 0: A12 R W
Port P225 peripheral output select mode bit 1: CS3#
6–7 No function assigned. Fix to "0". 00