APPENDIX A LIST OF I/O REGISTERS
AP-A-24
Seiko Epson Corporation
S1C33L26 TECHNICAL MANUAL
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
PA[3:0] Port
Function Select
Register
(PMUX_PA_03)
0x300814
(8 bits)
D7–6 CFPA3[1:0] PA3 port function select
CFPA3[1:0]
Function
0x0 R/W Write-protected
0x3
0x2
0x1
0x0
FPDAT23
FPDAT19
#SRDY1
PA3
D5–4 CFPA2[1:0] PA2 port function select
CFPA2[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
FPDAT22
FPDAT18
SCLK1
PA2
D3–2 CFPA1[1:0] PA1 port function select
CFPA1[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
FPDAT21
FPDAT17
SOUT1
PA1
D1–0 CFPA0[1:0] PA0 port function select
CFPA0[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
FPDAT20
FPDAT16
SIN1
PA0
PA[6:4] Port
Function Select
Register
(PMUX_PA_46)
0x300815
(8 bits)
D7–6 –
reserved
–
–
–
0 when being read.
D5–4 CFPA6[1:0] PA6 port function select
CFPA6[1:0]
Function
0x0 R/W Write-protected
0x3
0x2
0x1
0x0
reserved
reserved
#ADTRIG
PA6
D3–2 CFPA5[1:0] PA5 port function select
CFPA5[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
REMC_I
T16A_ATMB_1
PA5
A25
D1–0 CFPA4[1:0] PA4 port function select
CFPA4[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
REMC_O
T16A_ATMA_1
PA4
A24
PB[3:0] Port
Function Select
Register
(PMUX_PB_03)
0x300816
(8 bits)
D7–6 CFPB3[1:0] PB3 port function select
CFPB3[1:0]
Function
0x0 R/W Write-protected
0x3
0x2
0x1
0x0
PWM_L
I2S_MCLK
FPDAT11
PB3
D5–4 CFPB2[1:0] PB2 port function select
CFPB2[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
PWM_H
I2S_SCLK
FPDAT10
PB2
D3–2 CFPB1[1:0] PB1 port function select
CFPB1[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
I2S_WS
FPDAT9
PB1
D1–0 CFPB0[1:0] PB0 port function select
CFPB0[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
I2S_SDO
FPDAT8
PB0
PB[7:4] Port
Function Select
Register
(PMUX_PB_47)
0x300817
(8 bits)
D7–6 CFPB7[1:0] PB7 port function select
CFPB7[1:0]
Function
0x0 R/W Write-protected
0x3
0x2
0x1
0x0
FPDAT23
reserved
FPDAT15
PB7
D5–4 CFPB6[1:0] PB6 port function select
CFPB6[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
FPDAT22
reserved
FPDAT14
PB6
D3–2 CFPB5[1:0] PB5 port function select
CFPB5[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
FPDAT21
reserved
FPDAT13
PB5
D1–0 CFPB4[1:0] PB4 port function select
CFPB4[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
FPDAT20
reserved
FPDAT12
PB4