APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
AP-A-32
Seiko Epson Corporation
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
0x0020 03b0–0x0020 03be
Synchronous Serial Interface (SPIA) Ch.0
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x0020
03b0
SPIA_0MOD
(SPIA Ch.0 Mode
Register)
15–12 –
0x0
–
R
–
11–8 CHLN[3:0]
0x7
H0
R/W
7–6 –
0x0
–
R
5
PUEN
0
H0
R/W
4
NOCLKDIV
0
H0
R/W
3
LSBFST
0
H0
R/W
2
CPHA
0
H0
R/W
1
CPOL
0
H0
R/W
0
MST
0
H0
R/W
0x0020
03b2
SPIA_0CTL
(SPIA Ch.0 Control
Register)
15–8 –
0x00
–
R
–
7–2 –
0x00
–
R
1
SFTRST
0
H0
R/W
0
MODEN
0
H0
R/W
0x0020
03b4
SPIA_0TXD
(SPIA Ch.0 Transmit
Data Register)
15–0 TXD[15:0]
0x0000
H0
R/W –
0x0020
03b6
SPIA_0RXD
(SPIA Ch.0 Receive
Data Register)
15–0 RXD[15:0]
0x0000
H0
R
–
0x0020
03b8
SPIA_0INTF
(SPIA Ch.0 Interrupt
Flag Register)
15–8 –
0x00
–
R
–
7
BSY
0
H0
R
6–4 –
0x0
–
R
3
OEIF
0
H0/S0
R/W Cleared by writing 1.
2
TENDIF
0
H0/S0
R/W
1
RBFIF
0
H0/S0
R
Cleared by reading the
SPIA_0RXD register.
0
TBEIF
1
H0/S0
R
Cleared by writing to the
SPIA_0TXD register.
0x0020
03ba
SPIA_0INTE
(SPIA Ch.0 Interrupt
Enable Register)
15–8 –
0x00
–
R
–
7–4 –
0x0
–
R
3
OEIE
0
H0
R/W
2
TENDIE
0
H0
R/W
1
RBFIE
0
H0
R/W
0
TBEIE
0
H0
R/W
0x0020
03bc
SPIA_0TBEDMAEN
(SPIA Ch.0 Transmit
Buffer Empty DMA
Request Enable
Register)
15–8 –
0x00
–
R
–
7–4 –
0x0
–
R
3–0 TBEDMAEN[3:0]
0x0
H0
R/W
0x0020
03be
SPIA_0RBFDMAEN
(SPIA Ch.0 Receive
Buffer Full DMA
Request Enable
Register)
15–8 –
0x00
–
R
–
7–4 –
0x0
–
R
3–0 RBFDMAEN[3:0]
0x0
H0
R/W
0x0020 03c0–0x0020 03d6
I
2
C (I2C) Ch.0
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x0020
03c0
I2C_0CLK
(I2C Ch.0 Clock
Control Register)
15–9 –
0x00
–
R
–
8
DBRUN
0
H0
R/W
7–6 –
0x0
–
R
5–4 CLKDIV[1:0]
0x0
H0
R/W
3–2 –
0x0
–
R
1–0 CLKSRC[1:0]
0x0
H0
R/W
0x0020
03c2
I2C_0MOD
(I2C Ch.0 Mode
Register)
15–8 –
0x00
–
R
–
7–3 –
0x00
–
R
2
OADR10
0
H0
R/W
1
GCEN
0
H0
R/W
0
–
0
–
R