0X52A0: P0 Port Function Select Register (P0_Pmux) - Epson S1C17704 Technical Manual

Cmos 16-bit single chip microcomputer
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0x52a0: P0 Port Function Select Register (P0_PMUX)

Register name Address
Bit
P0 Port
0x52a0
D7–6 –
Function Select
(8 bits)
D5
Register
D4
(P0_PMUX)
D3–0 –
The P04 and P05 I/O port pins are shared with a peripheral module. This register configures the pin functions.
D[7:6]
Reserved
D5
P05MUX: P05 Port Function Select Bit
1 (R/W): REMO (REMC)
0 (R/W): P05 port (default)
D4
P04MUX: P04 Port Function Select Bit
1 (R/W): REMI (REMC)
0 (R/W): P04 port (default)
D[3:0]
Reserved
S1C17704 TECHNICAL MANUAL
Name
Function
reserved
P05MUX
P05 port function select
P04MUX
P04 port function select
reserved
EPSON
Setting
Init. R/W
1 REMO
0 P05
1 REMI
0 P04
10 I/O PORTS (P)
Remarks
0 when being read.
0
R/W
0
R/W
0 when being read.
10-21

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