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>
1
2
3
4
5
6
b7
b0
P224
SMD
P225
SMD
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".
0
0
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".
0
0
Summary of Contents for M32R/ECU Series
Page 17: ...12 This page is blank for reasons of layout...
Page 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Page 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Page 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Page 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Page 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...
