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0x0020 0380–0x0020 0394
Address
Register name
UART3_0CLK
0x0020
(UART3 Ch.0
0380
Clock
Control Register)
UART3_0MOD
0x0020
(UART3 Ch.0
0382
Mode
Register)
UART3_0BR
0x0020
(UART3 Ch.0
0384
Baud-
Rate Register)
UART3_0CTL
0x0020
(UART3 Ch.0
0386
Control Register)
UART3_0TXD
0x0020
(UART3 Ch.0
0388
Trans- mit Data
Register)
UART3_0RXD
0x0020
(UART3 Ch.0
038a
Receive Data
Register)
UART3_0INTF
(UART3 Ch.0
0x0020
Status and
038c
Interrupt Flag
Register)
B-24
UART (UART3) Ch.0
Bit
Bit name
15–9
–
8
DBRUN
7–6
–
5–4
CLKDIV[1:0]
3–2
–
1–0
CLKSRC[1:0]
15–13
–
12
PECAR
11
CAREN
10
BRDIV
9
INVRX
8
INVTX
7
–
6
PUEN
5
OUTMD
4
IRMD
3
CHLN
2
PREN
1
PRMD
0
STPB
15–12
–
11–8
FMD[3:0]
7–0
BRT[7:0]
15–8
–
7–2
–
1
SFTRST
0
MODEN
15–8
–
7–0
TXD[7:0]
15–8
–
7–0
RXD[7:0]
15–10
–
9
RBSY
8
TBSY
7
–
6
TENDIF
5
FEIF
4
PEIF
3
OEIF
2
RB2FIF
1
RB1FIF
0
TBEIF
Seiko Epson Corporation
Initial
Reset
R/W
0x00
–
R
0
H0
R/W
0x0
–
R
0x0
H0
R/W
0x0
–
R
0x0
H0
R/W
0x00
–
R
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
–
R
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0x0
–
R
0x0
H0
R/W
0x00
H0
R/W
0x00
–
R
0x00
–
R
0
H0
R/W
0
H0
R/W
0x00
–
R
0x00
H0
R/W
0x00
–
R
0x00
H0
R
0x00
–
R
0
H0/S0
R
0
H0/S0
R
0
–
R
0
H0/S0
R/W
0
H0/S0
R/W
0
H0/S0
R/W
0
H0/S0
R/W
0
H0/S0
R
0
H0/S0
R
1
H0/S0
R
S1C31D50 TECHNICAL MANUAL
Remarks
–
–
–
–
–
–
–
Cleared by writing 1.
Cleared by writing 1 or
read- ing the
UART3_0RXD register.
Cleared by writing 1.
Cleared by reading the
UART3_0RXD register.
Cleared by writing to the
UART3_0TXD register.
(Rev. 1.00)
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