Epson S1C17624 Technical Manual page 103

P0[3:0] Port Function Select Register (P00_03PMuX)
Register name address Bit
P0[3:0] Port 0x52a0 D7–6 P03MuX[1:0] P03 port function select
Function Select
(8 bits)
Register
(P00_03PMuX)
D5–4 P02MuX[1:0] P02 port function select
D3–2 P01MuX[1:0] P01 port function select
D1–0 P00MuX[1:0] P00 port function select
The P00 to P03 port pins are shared with the peripheral module pins. This register is used to select how the pins are
used.
D[7:6] P03MuX[1:0]: P03 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): #ADTRG (ADC10)
0x0 (R/W): P03 (default)
D[5:4] P02MuX[1:0]: P02 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): Reserved
0x0 (R/W): P02/EXCL0 (T16 Ch.0) (default)
To use the P02 pin for EXCL0 input, P0OEN2/P0_OEN register must be set to 0 and P0IEN2/P0_IEN
register must be set to 1.
D[3:2] P01MuX[1:0]: P01 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): REMI (REMC)
0x0 (R/W): P01 (default)
D[1:0] P00MuX[1:0]: P00 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): REMO (REMC)
0x0 (R/W): P00 (default)
S1C17624/604/622/602/621 TeChniCal Manual
name Function
Seiko epson Corporation
Setting init. R/W
P03MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 #ADTRG
0x0 P03
P02MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 reserved
0x0 P02/EXCL0
P01MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 REMI
0x0 P01
P00MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 REMO
0x0 P00
9 i/O PORTS (P)
Remarks
9-13