XR16L784 Exar Corporation, XR16L784 Datasheet - Page 18
XR16L784
Manufacturer Part Number
XR16L784
Description
High Performance 5V And 3.3V Quad Uart
Manufacturer
Exar Corporation
Datasheet
1.XR16L784.pdf
(43 pages)
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XR16L784
HIGH PERFORMANCE 5V AND 3.3V QUAD UART
REV. 1.0.2
.
A3 A2 A1 A0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
A
DDRESS
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0 0
0 0
0 1
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
T
ABLE
RHR - Receive Holding Reg
THR - Transmit Holding Register
DLL - Baud Rate Generator Divisor,
Least-significant-byte (LSB)
DLM - Baud Rate Generator Divisor,
Most-significant-byte (MSB)
IER - Interrupt Enable Reg
ISR - Interrupt Status Reg
FCR - FIFO Control Reg
LCR - Line Control Reg
MCR - Modem Control Reg
LSR - Line Status Reg
reserved
MSR - Modem Status Reg
reserved
SPR - Scratch Pad Reg
FCTR
EFR - Enhanced Function Reg
TXCNT - Transmit FIFO Level Counter
TXTRG - Transmit FIFO Trigger Level
RXCNT - Receive FIFO Level Counter
RXTRG - Receive FIFO Trigger Level
Xoff-1 - Xoff Character 1
Xchar
Xoff-2 - Xoff Character 2
reserved
Xon-1 - Xon Character 1
reserved
Xon-2 - Xon Character 2
reserved
7: UART CHANNEL CONFIGURATION REGISTERS.
R
EGISTER
E
16550 C
NHANCED
18
OMPATIBLE
R
EGISTER
R
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Write-only
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Read-only
EAD
/W
RITE
Xon,Xoff Rcvd.
LCR[7] = 1
LCR[7] = 0
C
LCR[7] = 0
LCR[7] = 1
OMMENTS
Flags