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SCC2681 Datasheet(PDF) 13 Page - NXP Semiconductors

Part # SCC2681
Description  Dual asynchronous receiver/transmitter (DUART)
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SCC2681 Datasheet(HTML) 13 Page - NXP Semiconductors

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Philips Semiconductors
Product data
SCC2681
Dual asynchronous receiver/transmitter (DUART)
2004 Apr 06
13
Table 2. Register Bit Formats (Continued)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ACR
BRG SET
SELECT
COUNTER/TIMER
MODE AND SOURCE
DELTA
IP 3 INT
DELTA
IP 2 INT
DELTA
IP 1 INT
DELTA
IP 0 INT
0 = set 1
1 = set 2
See Table 4
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IPCR
DELTA
IP 3
DELTA
IP 2
DELTA
IP 1
DELTA
IP 0
IP 3
IP 2
IP 1
IP 0
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = LOW
1 = HIGH
0 = LOW
1 = HIGH
0 = LOW
1 = HIGH
0 = LOW
1 = HIGH
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ISR
INPUT
PORT
CHANGE
DELTA
BREAK B
RxRDY/
FFULLB
TxRDYB
COUNTER
READY
DELTA
BREAK A
RxRDY/
FFULLA
TxRDYA
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IMR
IN. PORT
CHANGE
INT
DELTA
BREAK B
INT
RxRDY/
FFULLB
INT
TxRDYB
INT
COUNTER
READY
INT
DELTA
BREAK A
INT
RxRDY/
FFULLA
INT
TxRDYA
INT
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
CTUR
C/T[15]
C/T[14]
C/T[13]
C/T[12]
C/T[11]
C/T[10]
C/T[9]
C/T[8]
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
CTLR
C/T[7]
C/T[6]
C/T[5]
C/T[4]
C/T[3]
C/T[2]
C/T[1]
C/T[0]
SCPR
SCPR[7:0]
SCPR
7 general purpose bits or flags
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SOPR
OP7
OP6
OP5
OP4
OP3
OP2
OP1
OP0
SOPR
0 = no change
1 = set bit
0 = no change
1 = set bit
0 = no change
1 = set bit
0 = no change
1 = set bit
0 = no change
1 = set bit
0 = no change
1 = set bit
0 = no change
1 = set bit
0 = no change
1 = set bit
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ROPR
OP7
OP6
OP5
OP4
OP3
OP2
OP1
OP0
ROPR
0 = no change
1 = reset bit
0 = no change
1 = reset bit
0 = no change
1 = reset bit
0 = no change
1 = reset bit
0 = no change
1 = reset bit
0 = no change
1 = reset bit
0 = no change
1 = reset bit
0 = no change
1 = reset bit


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