SC26C92C1B View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'SC26C92C1B' PDF : 31 Pages View PDF
Philips Semiconductors
Dual universal asynchronous receiver/transmitter (DUART)
Product specification
SC26C92
Table 2. Register Bit Formats (Continued)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SRA
SRB
0x01
RECEIVED
BREAK*
0 = No
1 = Yes
FRAMING
ERROR*
0 = No
1 = Yes
PARITY
ERROR*
0 = No
1 = Yes
OVERRUN
ERROR
0 = No
1 = Yes
TxEMT
0 = No
1 = Yes
TxRDY
0 = No
1 = Yes
FFULL
0 = No
1 = Yes
RxRDY
0 = No
1 = Yes
NOTE: *These status bits are appended to the corresponding data character in the receive FIFO. A read of the status provides these bits
(7:5) from the top of the FIFO together with bits (4:0). These bits are cleared by a “reset error status” command. In character mode they are
discarded when the corresponding data character is read from the FIFO. In block error mode, block error conditions must be cleared by using
the error reset command (command 4x) or a receiver reset.
OPCR
0x0D
BIT 7
OP7
BIT 6
OP6
BIT 5
OP5
BIT 4
OP4
0 = OPR[7]
1 = TxRDYB
0 = OPR[6]
1 = TxRDYA
0 = OPR[5]
1 = RxRDY/
FFULLB
0 = OPR[4]
1 = RxRDY/
FFULLA
BIT 3
BIT 2
OP3
00 = OPR[3]
01 = C/T OUTPUT
10 = TxCB(1X)
11 = RxCB(1X)
BIT 1
BIT 0
OP2
00 = OPR[2]
01 = TxCA(16X)
10 = TxCA(1X)
11 = RxCA(1X)
SOPR
0x0E
BIT 7
See Note
NOTE: 0 = No Change; 1 = Set
BIT 6
See Note
BIT 5
See Note
BIT 4
See Note
BIT 3
See Note
BIT 2
See Note
BIT 1
See Note
BIT 0
See Note
ROPR
0x0F
BIT 7
See Note
BIT 6
See Note
NOTE: 0 = No Change; 1 = Reset
BIT 7
BIT 6
OPR
OP 7
0 = Pin High
1 = Pin Low
OP 6
0 = Pin High
1 = Pin Low
BIT 5
See Note
BIT 5
OP 5
0 = Pin High
1 = Pin Low
BIT 4
See Note
BIT 4
OP 4
0 = Pin High
1 = Pin Low
BIT 3
See Note
BIT 3
OP 3
0 = Pin High
1 = Pin Low
BIT 2
See Note
BIT 2
OP 2
0 = Pin High
1 = Pin Low
BIT 1
See Note
BIT 1
OP 1
0 = Pin High
1 = Pin Low
BIT 0
See Note
BIT 0
OP 0
0 = Pin High
1 = Pin Low
ACR
0x04
BIT 7
BRG SET
SELECT
0 = set 1
1 = set 2
BIT 6
BIT 5
BIT 4
COUNTER/TIMER
MODE AND SOURCE
See Table 6
BIT 3
DELTA
IP 3 INT
0 = Off
1 = On
BIT 2
DELTA
IP 2 INT
0 = Off
1 = On
BIT 1
DELTA
IP 1 INT
0 = Off
1 = On
BIT 0
DELTA
IP 0 INT
0 = Off
1 = On
IPCR
0x04
BIT 7
DELTA
IP 3
0 = No
1 = Yes
BIT 6
DELTA
IP 2
0 = No
1 = Yes
BIT 5
DELTA
IP 1
0 = No
1 = Yes
BIT 4
DELTA
IP 0
0 = No
1 = Yes
BIT 3
IP 3
0 = Low
1 = High
BIT 2
IP 2
0 = Low
1 = High
BIT 1
IP 1
0 = Low
1 = High
BIT 0
IP 0
0 = Low
1 = High
ISR
0x05
IMR
0x05
BIT 7
INPUT
PORT
CHANGE
0 = No
1 = Yes
BIT 7
IN. PORT
CHANGE
INT
0 = Off
1 = On
BIT 6
DELTA
BREAK B
0 = No
1 = Yes
BIT 6
DELTA
BREAK B
INT
0 = Off
1 = On
BIT 5
RxRDY/
FFULLB
0 = No
1 = Yes
BIT 5
RxRDY/
FFULLB
INT
0 = Off
1 = On
BIT 4
TxRDYB
0 = No
1 = Yes
BIT 4
TxRDYB
INT
0 = Off
1 = On
BIT 3
COUNTER
READY
0 = No
1 = Yes
BIT 3
COUNTER
READY
INT
0 = Off
1 = On
BIT 2
DELTA
BREAK A
0 = No
1 = Yes
BIT 2
DELTA
BREAK A
INT
0 = Off
1 = On
BIT 1
RxRDY/
FFULLA
0 = No
1 = Yes
BIT 1
RxRDY/
FFULLA
INT
0 = Off
1 = On
BIT 0
TxRDYA
0 = No
1 = Yes
BIT 0
TxRDYA
INT
0 = Off
1 = On
2000 Jan 31
15
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