xr68c92 Exar Corporation, xr68c92 Datasheet - Page 16

• Manufacturer Part Number: xr68c92
• Description: Xr68c92 -dual Uart With Eight Bytes Transmit And Receive Fifo
• Manufacturer: Exar Corporation

XR68C92/192
A3 A2 A1 A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
1
1
1
1
1
1
1
Rev. 1.33
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
1
1
0
0
0
1
1
1
1
0
0
0
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
1
1
0
1
0
1
1
0
0
1
1
Register
MRB1[00]
MRA2[00]
MRB2[00]
CSRA[00]
CSRB[00]
OPCR[00]
STCR[XX]
SOPR[00]
SPCR[XX]
ROPR[00]
[Default]
CTPU[00]
CTPL[00]
RXA[XX]
SRA[00]
CRA[00]
RXB[XX]
TXA[XX]
TXB[XX]
IPCR[00]
ACR[00]
MRA0[00]
MRB0[00]
MRA1[00]
SRB[00]
CRB[00]
CUR[00]
CLR[00]
IMR[00]
IVR[0F]
IPR[XX]
ISR[00]
Loopback Loopback
Received
command
dog timer
dog timer
rate set
change
change
control
Watch
Watch
select
select
BIT-7
break
Bit-15
mode
clock
Misc.
Delta
Baud
Used
Bit-7
Input
Input
Bit-7
Bit-7
Bit-7
Bit-7
Bit-7
RTS
port
port
OP7
Not
RX
RX
IP3
X
X
command
Framing
level [1]
level [1]
break B
break B
trigger
trigger
trigger
level [0]
select
Bit-14
BIT-6
mode
clock
Misc.
mode
Used
error
Delta
Delta
Delta
Bit-6
Bit-6
Bit-6
Bit-6
Bit-6
Bit-6
OP6
C/T
Not
RX
RX
RX
RX
IP2
X
X
command
level [1]
level [1]
control
trigger
trigger
ready
ready
Bit-13
BIT-5
Parity
mode
clock
Misc.
mode
Error
error
Delta
Bit-5
Bit-5
Bit-5
Bit-5
Bit-5
Bit-5
RTS
RxB
RxB
OP5
C/T
RX
IP1
IP5
TX
TX
TX
X
X
16
command
Overrun
control
trigger
level [0]
trigger
level [0]
BIT-4
Parity
ready
ready
Bit-12
mode
mode
error
clock
Misc.
Delta
Auto
Bit-4
Bit-4
Bit-4
Bit-4
Bit-4
Bit-4
CTS
TxB
TxB
OP4
C/T
TX
TX
RX
IP0
IP4
X
X
disable
length
empty
ready
ready
Bit-11
BIT-3
Parity
mode
clock
used
used
input
Delta
Stop
Bit-3
Bit-3
Bit-3
Bit-3
Bit-3
Bit-3
OP3
Not
Not
C/T
C/T
TX
TX
IP3
IP3
int.
IP3
Tx
bit
X
X
break A
break A
enable
length
ready
Bit-10
BIT-2
ext. 2
Parity
Baud
clock
used
Delta
Delta
Delta
Stop
Bit-2
Bit-2
input
Bit-2
Bit-2
Bit-2
Bit-2
type
OP3
rate
Not
IP2
IP2
int.
IP2
Tx
TX
TX
bit
X
X
Factory
Rx FIFO
disable
length
length
BIT-1
ready
ready
mode
Word
used
clock
Delta
input
Bit-9
Stop
Bit-1
Bit-1
RxA
RxA
Bit-1
Bit-1
Bit-1
Bit-1
OP2
test
Not
full
TX
RX
IP1
IP1
int.
IP1
bit
X
X
enable
length
length
ready
ready
ready
BIT-0
ext. 1
Baud
Word
clock
used
input
Delta
Stop
Bit-0
Bit-0
Bit-8
Bit-0
Bit-0
Bit-0
Bit-0
TxA
TxA
OP2
rate
Not
Rx
TX
RX
IP0
IP0
int.
IP0
bit
X
X