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9 i/O PORTS (P)
9-12
Seiko epson Corporation
S1C17153 TeChniCal Manual
(Rev. 1.0)
P1[3:0] Port Function Select Register (P10_13PMuX)
Register name address
Bit
name
Function
Setting
init. R/W
Remarks
P1[3:0] Port
Function Select
Register
(P10_13PMuX)
0x52a2
(8 bits)
D7–6
P13MuX[1:0]
P13 port function select
P13MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
reserved
P13
reserved
D5–4
P12MuX[1:0]
P12 port function select
P12MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
#BZ
P12
reserved
D3–2
P11MuX[1:0]
P11 port function select
P11MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
BZ
P11
reserved
D1–0
P10MuX[1:0]
P10 port function select
P10MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
SPICLK0
FOUTB
P10
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): Reserved
0x1 (R/W): P13 port
0x0 (R/W): Reserved (default)
D[5:4]
P12MuX[1:0]: P12 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): #BZ (SND)
0x1 (R/W): P12 port
0x0 (R/W): Reserved (default)
D[3:2]
P11MuX[1:0]: P11 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): BZ (SND)
0x1 (R/W): P11 port
0x0 (R/W): Reserved (default)
D[1:0]
P10MuX[1:0]: P10 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): SPICLK0 (SPI Ch.0)
0x1 (R/W): FOUTB (CLG)
0x0 (R/W): P10 port (default)