aPPenDiX a liST OF i/O ReGiSTeRS
aP-a-20
Seiko epson Corporation
S1C17624/604/622/602/621 TeChniCal Manual
Register name address
Bit
name
Function
Setting
init. R/W
Remarks
P2[7:4] Port
Function Select
Register
(P24_27PMuX)
0x52a5
(8 bits)
D7–6 P27MuX[1:0] P27 port function select
P27MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
RFIN1
SOUT1
P27
D5–4 P26MuX[1:0] P26 port function select
P26MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
reserved
RFIN0
P26
D3–2 P25MuX[1:0] P25 port function select
P25MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
reserved
REF0
P25
D1–0 P24MuX[1:0] P24 port function select
P24MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
reserved
SENA0
P24
P3[3:0] Port
Function Select
Register
(P30_33PMuX)
0x52a6
(8 bits)
D7–6 P33MuX[1:0] P33 port function select
P33MUX[1:0]
Function
0x0 R/W TOUTA6/CAPA6:
S1C17624/604 only
0x3
0x2
0x1
0x0
TOUTA6/CAPA6
SCL0
SCL1
P33
D5–4 P32MuX[1:0] P32 port function select
P32MUX[1:0]
Function
0x0 R/W TOUTB5/CAPB5:
S1C17624/604 only
0x3
0x2
0x1
0x0
TOUTB5/CAPB5
SENB1
SDA0
P32
D3–2 P31MuX[1:0] P31 port function select
P31MUX[1:0]
Function
0x0 R/W TOUTA5/CAPA5:
S1C17624/604 only
0x3
0x2
0x1
0x0
TOUTA5/CAPA5
SENA1
SCL0
P31
D1–0 P30MuX[1:0] P30 port function select
P30MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
REF1
SIN1
P30
P3[7:4] Port
Function Select
Register
(P34_37PMuX)
0x52a7
(8 bits)
D7–6 P37MuX[1:0] P37 port function select
P37MUX[1:0]
Function
0x0 R/W EXCL6:
S1C17624/604 only
(Set EXCL6S to 0 in
S1C17624.)
0x3
0x2
0x1
0x0
TOUT4
LFRO
TOUTN3
P37/EXCL6
D5–4 P36MuX[1:0] P36 port function select
P36MUX[1:0]
Function
0x0 R/W EXCL5:
S1C17624/604 only
(Set EXCL5S to 0 in
S1C17624.)
0x3
0x2
0x1
0x0
reserved
RFCLKO
TOUT3
P36/EXCL5
D3–2 P35MuX[1:0] P35 port function select
P35MUX[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
#BFR
FOUT1
P35
D1–0 P34MuX[1:0] P34 port function select
P34MUX[1:0]
Function
0x0 R/W TOUTB6/CAPB6:
S1C17624/604 only
0x3
0x2
0x1
0x0
TOUTB6/CAPB6
SDA0
SDA1
P34