APPENDIX A LIST OF I/O REGISTERS
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
AP-A-49
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
A/D Control/
Status Register
(ADC10_CTL)
0x301304
(16 bits)
D15
–
reserved
–
–
–
0 when being read.
D14–12 ADICH[2:0] Conversion channel indicator
0x0 to 0x5
0x0
R
D11
–
reserved
–
–
–
0 when being read.
D10
ADIBS
ADC10 status
1 Busy
0 Idle
0
R
D9
ADOWE
Overwrite error flag
1 Error
0 Normal
0
R/W Reset by writing 1.
D8
ADCF
Conversion completion flag
1 Completed 0 Run/Stand-
by
0
R Reset when
ADC10_ADD is
read.
D7–6 –
reserved
–
–
–
0 when being read.
D5
ADOIE
Overwrite error interrupt enable
1 Enable
0 Disable
0
R/W
D4
ADCIE
Conversion completion int. enable 1 Enable
0 Disable
0
R/W
D3–2 –
reserved
–
–
–
0 when being read.
D1
ADCTL
A/D conversion control
1 Start
0 Stop
0
R/W
D0
ADEN
ADC10 enable
1 Enable
0 Disable
0
R/W
A/D Clock
Control Register
(ADC10_CLK)
0x301306
(16 bits)
D15–4 –
reserved
–
–
–
0 when being read.
D3–0 ADDF[3:0] A/D converter clock division ratio
select
ADDF[3:0]
Division ratio
0x0 R/W Source clock =
PCLK1
0xf
0xe
0xd
0xc
0xb
0xa
0x9
0x8
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
reserved
1/32768
1/16384
1/8192
1/4096
1/2048
1/1024
1/512
1/256
1/128
1/64
1/32
1/16
1/8
1/4
1/2
0x301400–0x301412
I
2
S
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
I
2
S Control
Register
(I2S_CTL)
0x301400
(16 bits)
D15–9 –
reserved
–
–
–
0 when being read.
D8
DTSIGN
I
2
S signed/unsigned data format
select
1 Signed
0 Unsigned
0
R/W
D7
WCLKMD
I
2
S output word clock mode select 1 L: High
R: Low
0 L: Low
R: High
0
R/W
D6
BCLKPOL I
2
S output bit clock polarity select 1 Negative
0 Positive
0
R/W
D5
DTFORM
I
2
S output data format select
1 LSB first
0 MSB first
0
R/W
D4
I2SOUTEN I
2
S output enable
1 Enable
0 Disable
0
R/W
D3–2 DTTMG[1:0] I
2
S output data timing select
DTTMG[1:0]
Timing mode
0x0 R/W
0x3
0x2
0x1
0x0
reserved
Right justified
Left justified
I
2
S
D1–0 CHMD[1:0] I
2
S output channel mode select
CHMD[1:0]
Channel mode 0x0 R/W
0x3
0x2
0x1
0x0
Mute
Mono left
Mono right
Stereo
I
2
S Master
Clock Division
Ratio Register
(I2S_DV_MCLK)
0x301404
(16 bits)
D15–6 –
reserved
–
–
–
0 when being read.
D5–0 MCLKDIV
[5:0]
I2S_MCLK division ratio select
MCLKDIV[5:0] Division ratio
0x0 R/W Source clock =
PCLK1
0x3f
0x3e
0x3d
:
0x2
0x1
0x0
1/64
1/63
1/62
:
1/3
1/2
1/1