Epson S1C31D50 Technical Manual page 378

APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
Address Register name
0x0020 P4RCTL
0244 (P4 Port Pull-up/down
Control Register)
0x0020 P4INTF
0246 (P4 Port Interrupt
Flag Register)
0x0020 P4INTCTL
0248 (P4 Port Interrupt
Control Register)
0x0020 P4CHATEN
024a
(P4 Port Chattering
Filter Enable Register)
AP-A-14
Bit Bit name
15 P4PDPU7
14 P4PDPU6
13 P4PDPU5
12 P4PDPU4
11 P4PDPU3
10 P4PDPU2
9 P4PDPU1
8 P4PDPU0
7 P4REN7
6 P4REN6
5 P4REN5
4 P4REN4
3 P4REN3
2 P4REN2
1 P4REN1
0 P4REN0
15–8 –
7 P4IF7
6 P4IF6
5 P4IF5
4 P4IF4
3 P4IF3
2 P4IF2
1 P4IF1
0 P4IF0
15 P4EDGE7
14 P4EDGE6
13 P4EDGE5
12 P4EDGE4
11 P4EDGE3
10 P4EDGE2
9 P4EDGE1
8 P4EDGE0
7 P4IE7
6 P4IE6
5 P4IE5
4 P4IE4
3 P4IE3
2 P4IE2
1 P4IE1
0 P4IE0
15–8 –
7 P4CHATEN7
6 P4CHATEN6
5 P4CHATEN5
4 P4CHATEN4
3 P4CHATEN3
2 P4CHATEN2
1 P4CHATEN1
0 P4CHATEN0
Seiko Epson Corporation
Initial Reset R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0x00 – R
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0x00 – R
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
0 H0 R/W
S1C31D50/D51 TECHNICAL MANUAL
48 64 80 100
Remarks
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(Rev. 2.00)
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