Epson S1C31D50 Technical Instructions page 102

7.7.2. P1 Port Group
The P1 port group consists of seven ports P10–P16 and they support the GPIO and interrupt
functions.
Register name Bit
PPORTP1DAT 15–8
(P1 Port Data
7–0
Register)
PPORTP1IOEN 15–8
(P1 Port Enable
7–0
Register)
PPORTP1RCTL 15–8
(P1 Port Pull-
7–0
up/down Control
Register)
PPORTP1INTF 15–8
(P1 Port Interrupt
7–0
Flag Register)
PPORTP1INTCTL 15–8
(P1 Port Interrupt 7–0
Control Register)
PPORTP1CHATEN 15–8
(P1 Port Chattering 7–0
Filter Enable
Register)
PPORTP1MODSEL 15–8
(P1 Port Mode 7–0
Select Register)
PPORTP1FNCSEL 15–14
(P1 Port Function 13–12
Select Register)
11–10
9–8
7–6
5–4
3–2
1–0
P1SELy = 0
Port
name
GPIO
Peripheral
P10 P10
P11 P11
P12 P12
P13 P13
P14 P14
P15 P15
P16 P16
P17 P17
*1: Refer to the "Universal Port Multiplexer" chapter.
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
Table 7.7.2.1 Control Registers for P1 Port Group
Bit name Initial
P1OUT[7:0] 0x00
P1IN[7:0] 0x00
P1IEN[7:0] 0x00
P1OEN[7:0] 0x00
P1PDPU[7:0] 0x00
P1REN[7:0] 0x00
– 0x00
P1IF[7:0] 0x00
P1EDGE[7:0] 0x00
P1IE[7:0] 0x00
– 0x00
P1CHATEN[7:0] 0x00
– 0x00
P1SEL[7:0] 0x00
P17MUX[1:0]
P16MUX[1:0]
P15MUX[1:0]
P14MUX[1:0]
P13MUX[1:0]
P12MUX[1:0]
P11MUX[1:0]
P10MUX[1:0]
Table 7.7.2.2 P1 Port Group Function Assignment
P1yMUX = 0x0 P1yMUX = 0x1
(Function 0) (Function 1)
Pin Peripheral
– – UPMUX
– – UPMUX
– – UPMUX
– – UPMUX
– – UPMUX
– – UPMUX
– – UPMUX
– – UPMUX
Seiko Epson Corporation
Reset R/W
H0 R/W
H0 R
H0 R/W
H0 R/W
H0 R/W
H0 R/W
– R
H0 R/W
H0 R/W
H0 R/W
– R
H0 R/W
– R
H0 R/W
0x0 H0 R/W
0x0 H0 R/W
0x0 H0 R/W
0x0 H0 R/W
0x0 H0 R/W
0x0 H0 R/W
0x0 H0 R/W
0x0 H0 R/W
P1SELy = 1
P1yMUX = 0x2
(Function 2)
Pin Peripheral
*1 ADC12A
*1 ADC12A
*1 ADC12A
*1 ADC12A
*1 ADC12A
*1 ADC12A
*1 ADC12A
*1 ADC12A
Remarks
–
–
–
–
Cleared by writing 1.
–
–
–
–
P1yMUX = 0x3
(Function 3)
Pin Peripheral Pin
ADIN7 – –
ADIN6 – –
ADIN5 – –
ADIN4 – –
ADIN3 – –
ADIN2 – –
ADIN1 – –
ADIN0 – –
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