Epson S1C17001 Technical Manual page 333

APPENDIX A I/O REGISTER LIST
0x5217–0x52a3
Register name Address Bit
P1 Port 0x5217 D7–0 P1IF[7:0]
Interrupt Flag (8 bits)
Register
(P1_IFLG)
P2 Port Input 0x5220 D7–0 P2IN[7:0]
Data Register (8 bits)
(P2_IN)
P2 Port Output 0x5221 D7–0 P2OUT[7:0] P2[7:0] port output data
Data Register (8 bits)
(P2_OUT)
P2 Port 0x5222 D7–0 P2IO[7:0]
I/O Direction (8 bits)
Control Register
(P2_IO)
P2 Port Pull-up 0x5223 D7–0 P2PU[7:0]
Control Register (8 bits)
(P2_PU)
P3 Port Input 0x5230 D7–4 –
Data Register (8 bits)
D3–0 P3IN[3:0]
(P3_IN)
P3 Port Output 0x5231 D7–4 –
Data Register (8 bits)
D3–0 P3OUT[3:0] P3[3:0] port output data
(P3_OUT)
P3 Port 0x5232 D7–4 –
I/O Direction (8 bits)
D3–0 P3IO[3:0]
Control Register
(P3_IO)
P3 Port Pull-up 0x5233 D7–4 –
Control Register (8 bits)
D3–0 P3PU[3:0]
(P3_PU)
P0 Port 0x52a0 D7–6 –
Function Select (8 bits)
D5
Register
D4
(P0_PMUX) D3–0 –
P1 Port 0x52a1 D7
D6
Function Select (8 bits)
Register D5
D4
(P1_PMUX)
D3
D2–0 –
P2 Port 0x52a2 D7
Function Select (8 bits)
D6
Register
D5
(P2_PMUX)
D4
D3
D2
D1
D0
P3 Port 0x52a3 D7–4 –
Function Select (8 bits)
D3
Register D2
(P3_PMUX)
D1
D0
324
Name Function
P1[7:0] port interrupt flag
P2[7:0] port input data
P2[7:0] port I/O direction select
P2[7:0] port pull-up enable
reserved
P3[3:0] port input data
reserved
reserved
P3[3:0] port I/O direction select
reserved
P3[3:0] port pull-up enable
reserved
P05MUX P05 port function select
P04MUX P04 port function select
reserved
P17MUX P17 port function select
– reserved
P15MUX P15 port function select
P14MUX P14 port function select
P13MUX P13 port function select
reserved
P27MUX P27 port function select
P26MUX P26 port function select
P25MUX P25 port function select
P24MUX P24 port function select
P23MUX P23 port function select
P22MUX P22 port function select
P21MUX P21 port function select
P20MUX P20 port function select
reserved
P33MUX P33 port function select
P32MUX P32 port function select
P31MUX P31 port function select
P30MUX P30 port function select
Setting
1 Cause of 0 Cause of
interrupt
occurred
1 1 (H) 0 0 (L)
1 1 (H) 0 0 (L)
1 Output 0 Input
1 Enable 0 Disable
–
1 1 (H) 0 0 (L)
–
1 1 (H) 0 0 (L)
–
1 Output 0 Input
–
1 Enable 0 Disable
–
1 REMO 0 P05
1 REMI 0 P04
–
1 #SPISS 0 P17
–
1 SCL 0 P15
1 SDA 0 P14
1 FOUT1 0 P13
–
1 EXCL3 0 P27
1 TOUT 0 P26
1 SCLK 0 P25
1 SOUT 0 P24
1 SIN 0 P23
1 SPICLK 0 P22
1 SDO 0 P21
1 SDI 0 P20
–
1 P33 0 DSIO
1 P32 0 DST2
1 P31 0 DCLK
1 FOUT3 0 P30
EPSON
P Port & Port MUX
Init. R/W Remarks
0 R/W Reset by writing 1.
interrupt not
occurred
× R
0 R/W
0 R/W
1 R/W
(0xff)
– – 0 when being read.
× R
– – 0 when being read.
0 R/W
– – 0 when being read.
0 R/W
– – 0 when being read.
1 R/W
(0xff)
– – 0 when being read.
0 R/W
0 R/W
– – 0 when being read.
0 R/W
– – 0 when being read.
0 R/W
0 R/W
0 R/W
– – 0 when being read.
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
– – 0 when being read.
0 R/W
0 R/W
0 R/W
0 R/W
S1C17001 TECHNICAL MANUAL