APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
S1C17M20/M21/M22/M23/M24/M25
Seiko Epson Corporation
AP-A-19
TECHNICAL MANUAL (Rev. 1.0)
0x4380–0x4390
UART (UART3) Ch.0
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x4380 UA0CLK
(UART3 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
0x4382 UA0MOD
(UART3 Ch.0 Mode
Register)
15–13 –
0x0
–
R
–
12 PECAR
0
H0
R/W
11 CAREN
0
H0
R/W
10 BRDIV
0
H0
R/W
9
INVRX
0
H0
R/W
8
INVTX
0
H0
R/W
7
–
0
–
R
6
PUEN
0
H0
R/W
5
OUTMD
0
H0
R/W
4
IRMD
0
H0
R/W
3
CHLN
0
H0
R/W
2
PREN
0
H0
R/W
1
PRMD
0
H0
R/W
0
STPB
0
H0
R/W
0x4384 UA0BR
(UART3 Ch.0 Baud-
Rate Register)
15–12 –
0x0
–
R
–
11–8 FMD[3:0]
0x0
H0
R/W
7–0 BRT[7:0]
0x00
H0
R/W
0x4386 UA0CTL
(UART3 Ch.0 Control
Register)
15–8 –
0x00
–
R
–
7–2 –
0x00
–
R
1
SFTRST
0
H0
R/W
0
MODEN
0
H0
R/W
0x4388 UA0TXD
(UART3 Ch.0 Trans-
mit Data Register)
15–8 –
0x00
–
R
–
7–0 TXD[7:0]
0x00
H0
R/W
0x438a UA0RXD
(UART3 Ch.0 Receive
Data Register)
15–8 –
0x00
–
R
–
7–0 RXD[7:0]
0x00
H0
R
0x438c UA0INTF
(UART3 Ch.0 Status
and Interrupt Flag
Register)
15–10 –
0x00
–
R
–
9
RBSY
0
H0/S0
R
8
TBSY
0
H0/S0
R
7
–
0
–
R
6
TENDIF
0
H0/S0
R/W Cleared by writing 1.
5
FEIF
0
H0/S0
R/W Cleared by writing 1 or read-
ing the UA0RXD register.
4
PEIF
0
H0/S0
R/W
3
OEIF
0
H0/S0
R/W Cleared by writing 1.
2
RB2FIF
0
H0/S0
R
Cleared by reading the
UA0RXD register.
1
RB1FIF
0
H0/S0
R
0
TBEIF
1
H0/S0
R
Cleared by writing to the
UA0TXD register.
0x438e UA0INTE
(UART3 Ch.0 Inter-
rupt Enable Register)
15–8 –
0x00
–
R
–
7
–
0
–
R
6
TENDIE
0
H0
R/W
5
FEIE
0
H0
R/W
4
PEIE
0
H0
R/W
3
OEIE
0
H0
R/W
2
RB2FIE
0
H0
R/W
1
RB1FIE
0
H0
R/W
0
TBEIE
0
H0
R/W
0x4390 UA0CAWF
(UART3 Ch.0 Carrier
Waveform Register)
15–8 –
0x00
–
R
–
7–0 CRPER[7:0]
0x00
H0
R/W