APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
S1C17M20/M21/M22/M23/M24/M25
Seiko Epson Corporation
AP-A-21
TECHNICAL MANUAL (Rev. 1.0)
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x43b8 SPI0INTF
(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
SPI0RXD register.
0
TBEIF
1
H0/S0
R
Cleared by writing to the
SPI0TXD register.
0x43ba SPI0INTE
(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
0x43c0–0x43d2
I
2
C (I2C) Ch.0
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x43c0 I2C0CLK
(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
0x43c2 I2C0MOD
(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
0x43c4 I2C0BR
(I2C Ch.0 Baud-Rate
Register)
15–8 –
0x00
–
R
–
7
–
0
–
R
6–0 BRT[6:0]
0x7f
H0
R/W
0x43c8 I2C0OADR
(I2C Ch.0 Own
Address Register)
15–10 –
0x00
–
R
–
9–0 OADR[9:0]
0x000
H0
R/W
0x43ca I2C0CTL
(I2C Ch.0 Control
Register)
15–8 –
0x00
–
R
–
7–6 –
0x0
–
R
5
MST
0
H0
R/W
4
TXNACK
0
H0/S0
R/W
3
TXSTOP
0
H0/S0
R/W
2
TXSTART
0
H0/S0
R/W
1
SFTRST
0
H0
R/W
0
MODEN
0
H0
R/W
0x43cc I2C0TXD
(I2C Ch.0 Transmit
Data Register)
15–8 –
0x00
–
R
–
7–0 TXD[7:0]
0x00
H0
R/W
0x43ce I2C0RXD
(I2C Ch.0 Receive
Data Register)
15–8 –
0x00
–
R
–
7–0 RXD[7:0]
0x00
H0
R