Epson S1C17624 Technical Manual page 108

9 i/O PORTS (P)
P2[7:4] Port Function Select Register (P24_27PMuX)
Register name address Bit
P2[7:4] Port 0x52a5 D7–6 P27MuX[1:0] P27 port function select
Function Select
(8 bits)
Register
(P24_27PMuX)
D5–4 P26MuX[1:0] P26 port function select
D3–2 P25MuX[1:0] P25 port function select
D1–0 P24MuX[1:0] P24 port function select
The P24 to P27 port pins are shared with the peripheral module pins. This register is used to select how the pins are
used.
D[7:6] P27MuX[1:0]: P27 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): RFIN1 (RFC)
0x1 (R/W): SOUT1 (UART Ch.1)
0x0 (R/W): P27 (default)
D[5:4] P26MuX[1:0]: P26 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): RFIN0 (RFC)
0x0 (R/W): P26 (default)
D[3:2] P25MuX[1:0]: P25 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): REF0 (RFC)
0x0 (R/W): P25 (default)
D[1:0] P24MuX[1:0]: P24 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): SENA0 (RFC)
0x0 (R/W): P24 (default)
9-18
name Function
Seiko epson Corporation
Setting init. R/W
P27MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 RFIN1
0x1 SOUT1
0x0 P27
P26MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 RFIN0
0x0 P26
P25MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 REF0
0x0 P25
P24MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 SENA0
0x0 P24
S1C17624/604/622/602/621 TeChniCal Manual
Remarks