sc16c850iet NXP Semiconductors, sc16c850iet Datasheet - Page 21

• Manufacturer Part Number: sc16c850iet
• Description: Sc16c850 2.5 V To 3.3 V Uart, 5 Mbit/s Max. With 128-byte Fifos, Infrared Irda , And 16 Mode Or 68 Mode Parallel Bus Interface
• Manufacturer: NXP Semiconductors

Table 8.
A2 A1 A0 Register
General register set
0
0
0
0
0
0
1
1
1
1
1
Special register set
0
0
Second special register set
0
1
0
0
0
1
1
1
0
0
0
1
1
0
0
1
0
0
0
1
0
0
1
0
1
1
0
1
0
1
1
0
SC16C850 internal registers
RHR
THR
IER
FCR
ISR
LCR
MCR
LSR
EFCR
MSR
SPR
DLL
DLM
TXLVLCNT
RXLVLCNT
[4]
[2]
Default
0xXX
0xXX
0x00
0x00
0x01
0x00
0x00
0x60
0x00
0xX0
0xFF
0xXX
0xXX
0x00
0x00
[6]
[1]
Bit 7
bit 7
bit 7
CTS
interrupt
RCVR
trigger
(MSB)
FIFOs
enabled
divisor latch
enable
clock
select
FIFO data
error
reserved
CD
bit 7
bit 7
bit 15
bit 7
bit 7
[3]
[3]
Bit 6
bit 6
bit 6
RTS
interrupt
RCVR
trigger
(LSB)
FIFOs
enabled
set break
IrDA enable
THR and
TSR empty
reserved
RI
bit 6
bit 6
bit 14
bit 6
bit 6
[3]
Bit 5
bit 5
bit 5
Xoff
interrupt
TX trigger
(MSB)
INT priority
bit 4
set parity
INT type
THR empty
reserved
DSR
bit 5
bit 5
bit 13
bit 5
bit 5
[3]
[3]
Bit 4
bit 4
bit 4
Sleep
mode
TX trigger
(LSB)
INT priority
bit 3
even parity
loopback
break
interrupt
reserved
CTS
bit 4
bit 4
bit 12
bit 4
bit 4
[3]
[3]
Bit 3
bit 3
bit 3
modem
status
interrupt
reserved
INT priority
bit 2
parity
enable
OP2
framing
error
reserved
bit 3
bit 3
bit 11
bit 3
bit 3
CD
Bit 2
bit 2
bit 2
receive line
status
interrupt
XMIT FIFO
reset
INT priority
bit 1
stop bits
OP1
parity error
Enable extra
feature bit 1
bit 2
bit 2
bit 10
bit 2
bit 2
RI
Bit 1
bit 1
bit 1
transmit
holding
register
interrupt
RCVR FIFO
reset
INT priority
bit 0
word length
bit 1
RTS
overrun
error
Enable extra
feature bit 0
bit 1
bit 1
bit 9
bit 1
bit 1
DSR
Bit 0
bit 0
bit 0
receive
holding
register
interrupt
FIFOs
enable
INT status
word length
bit 0
DTR
receive data
ready
Enable
TXLVLCNT/
RXLVLCNT
bit 0
bit 0
bit 8
bit 0
bit 0
CTS
R/W
R
W
R/W
W
R
R/W
R/W
R
W
R
R/W
R/W
R/W
R
R