Epson S1C17624 Technical Manual page 105

P1[3:0] Port Function Select Register (P10_13PMuX)
Register name address Bit
P1[3:0] Port 0x52a2 D7–6 P13MuX[1:0] P13 port function select
Function Select
(8 bits)
Register
(P10_13PMuX)
D5–4 P12MuX[1:0] P12 port function select
D3–2 P11MuX[1:0] P11 port function select
D1–0 P10MuX[1:0] P10 port function select
The P10 to P13 port pins are shared with the peripheral module pins. This register is used to select how the pins are
used.
D[7:6] P13MuX[1:0]: P13 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): AIN7 (ADC10)
0x1 (R/W): Reserved
0x0 (R/W): P13/EXCL1 (T16 Ch.1) (default)
To use the P13 pin for EXCL1 input, P1OEN3/P1_OEN register must be set to 0 and P1IEN3/P1_IEN
register must be set to 1.
D[5:4] P12MuX[1:0]: P12 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): SIN0 (UART Ch.0)
0x0 (R/W): P12 (default)
D[3:2] P11MuX[1:0]: P11 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): SOUT0 (UART Ch.0)
0x0 (R/W): P11 (default)
D[1:0] P10MuX[1:0]: P10 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): SCLK0 (UART Ch.0)
0x0 (R/W): P10 (default)
S1C17624/604/622/602/621 TeChniCal Manual
name Function
Seiko epson Corporation
Setting init. R/W
P13MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 AIN7
0x1 reserved
0x0 P13/EXCL1
P12MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 SIN0
0x0 P12
P11MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 SOUT0
0x0 P11
P10MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 SCLK0
0x0 P10
9 i/O PORTS (P)
Remarks
9-15