Epson S1C17624 Technical Manual page 104

9 i/O PORTS (P)
P0[7:4] Port Function Select Register (P04_07PMuX)
Register name address Bit
P0[7:4] Port 0x52a1 D7–6 P07MuX[1:0] P07 port function select
Function Select
(8 bits)
Register
(P04_07PMuX)
D5–4 P06MuX[1:0] P06 port function select
D3–2 P05MuX[1:0] P05 port function select
D1–0 P04MuX[1:0] P04 port function select
The P04 to P07 port pins are shared with the peripheral module pins. This register is used to select how the pins are
used.
D[7:6] P07MuX[1:0]: P07 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): #SPISS0 (SPI Ch.0)
0x0 (R/W): P07 (default)
D[5:4] P06MuX[1:0]: P06 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): SDI0 (SPI Ch.0)
0x0 (R/W): P06 (default)
D[3:2] P05MuX[1:0]: P05 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): SDO0 (SPI Ch.0)
0x0 (R/W): P05 (default)
D[1:0] P04MuX[1:0]: P04 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): SPICLK0 (SPI Ch.0)
0x0 (R/W): P04 (default)
9-14
name Function
Seiko epson Corporation
Setting init. R/W
P07MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 #SPISS0
0x0 P07
P06MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 SDI0
0x0 P06
P05MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 SDO0
0x0 P05
P04MUX[1:0] Function 0x0 R/W
0x3 reserved
0x2 reserved
0x1 SPICLK0
0x0 P04
S1C17624/604/622/602/621 TeChniCal Manual
Remarks