xr16m680 Exar Corporation, xr16m680 Datasheet - Page 32

• Manufacturer Part Number: xr16m680
• Description: 1.62v To 3.63v High Performance Uart With 32-byte Fifo
• Manufacturer: Exar Corporation

XR16M680
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
The Line Control Register is used to specify the asynchronous data communication format. The word or
character length, the number of stop bits, and the parity are selected by writing the appropriate bits in this
register.
LCR[1:0]: TX and RX Word Length Select
These two bits specify the word length to be transmitted or received.
4.6
FCR B
0
0
1
1
IT
Line Control Register (LCR) - Read/Write
-7
FCR B
T
0
1
0
1
ABLE
IT
-6
9: T
FCR B
RANSMIT AND
0
0
1
1
IT
-5
BIT-1
0
0
1
1
FCR
0
1
0
1
R
BIT
ECEIVE
-4
BIT-0
0
1
0
1
R
FIFO T
ECEIVE
L
32
EVEL
16
24
28
8
T
RIGGER
RIGGER
W
ORD LENGTH
5 (default)
T
ABLE AND
T
6
7
8
RANSMIT
L
EVEL
16
24
30
8
T
L
RIGGER
EVEL
S
ELECTION
16C650A, 16V2650 &
16M2650
C
OMPATIBILITY
REV. 1.0.0