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Serial 3 control register
Register symbol: SC3CTR
Address:
x'34000830
Purpose:
This register sets the serial interface 3 operation control conditions.
Bit No.
15
14
Bit
SC3
SC3
SC3
name
TXE RXE BKE TWS
Reset
0
0
Access
R/W R/W R/W R/W
Bit No.
Bit name
0
SC3CK0
1
SC3CK1
2
—
3
SC3STB
4
SC3PB0
5
SC3PB1
6
SC3PB2
7
SC3CLN
13
12
11
10
SC3
SC3
–
–
OD TWE CLN PB2
0
0
0
0
R
R
R/W R/W R/W R/W R/W R/W R/W
Description
Clock source selection (LSB)
Clock source selection (MSB)
00: IOCLK
01: Timer 2 underflow
10: External clock
11: Timer 8 underflow
"0" is returned when this bit is read.
Stop bit selection
0: 1 bit
1: 2 bits
Parity bit selection (LSB)
Parity bit selection
Parity bit selection (MSB)
000: None
001, 010, 011: Setting prohibited
100: 0 fixed
101: 1 fixed
110: Even (even number of ones)
111: Odd (odd number of ones)
Character length selection
0: 7 bits
1: 8 bits
9
8
7
6
5
SC3
SC3
SC3
SC3
PB1
0
0
0
0
0
Serial Interface
4
3
2
1
SC3
SC3
SC3
SC3
–
PB0
STB
CK1 CK0
0
0
0
0
R
R/W R/W
13-39
0
0
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