
APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
AP-A-44
Seiko Epson Corporation
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x0020
066a
T16_6INTF
(T16 Ch.6 Interrupt
Flag Register)
15–8 –
0x00
–
R
–
7–1 –
0x00
–
R
0
UFIF
0
H0
R/W Cleared by writing 1.
0x0020
066c
T16_6INTE
(T16 Ch.6 Interrupt
Enable Register)
15–8 –
0x00
–
R
–
7–1 –
0x00
–
R
0
UFIE
0
H0
R/W
0x0020 0670–0x0020 067e
Synchronous Serial Interface (SPIA) Ch.1
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x0020
0670
SPIA_1MOD
(SPIA Ch.1 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
0672
SPIA_1CTL
(SPIA Ch.1 Control
Register)
15–8 –
0x00
–
R
–
7–2 –
0x00
–
R
1
SFTRST
0
H0
R/W
0
MODEN
0
H0
R/W
0x0020
0674
SPIA_1TXD
(SPIA Ch.1 Transmit
Data Register)
15–0 TXD[15:0]
0x0000
H0
R/W –
0x0020
0676
SPIA_1RXD
(SPIA Ch.1 Receive
Data Register)
15–0 RXD[15:0]
0x0000
H0
R
–
0x0020
0678
SPIA_1INTF
(SPIA Ch.1 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_1RXD register.
0
TBEIF
1
H0/S0
R
Cleared by writing to the
SPIA_1TXD register.
0x0020
067a
SPIA_1INTE
(SPIA Ch.1 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
067c
SPIA_1TBEDMAEN
(SPIA Ch.1 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
067e
SPIA_1RBFDMAEN
(SPIA Ch.1 Receive
Buffer Full DMA
Request Enable
Register)
15–8 –
0x00
–
R
–
7–4 –
0x0
–
R
3–0 RBFDMAEN[3:0]
0x0
H0
R/W