xr16m698 Exar Corporation, xr16m698 Datasheet - Page 46

• Manufacturer Part Number: xr16m698
• Description: 1.62v To 3.63v High Performance Octal Uart With 32-byte Fifo
• Manufacturer: Exar Corporation

XR16M698
1.62V TO 3.63V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO
EFR[3:0]: Software Flow Control Select
Combinations of software flow control can be selected by programming these bits, as shown in
below.
These registers are used to program the Xoff1, Xoff2, Xon1 and Xon2 control characters respectively.
4.14
EFR
X
X
X
0
0
1
0
1
1
0
1
0
BIT
XOFF1, XOFF2, XON1 and XON2 Registers - Write Only
-3
EFR
X
X
X
0
0
0
1
1
0
1
1
0
BIT
-2
T
ABLE
EFR
18: S
X
X
X
X
0
0
1
0
1
1
1
1
BIT
-1
OFTWARE
EFR
X
X
X
X
0
0
0
1
1
1
1
1
F
BIT
LOW
46
-0
C
No TX and RX flow control (default and reset)
No transmit flow control
Transmit Xon1, Xoff1
Transmit Xon2, Xoff2
Transmit Xon1 and Xon2, Xoff1 and Xoff2
No receive flow control
Receiver compares Xon1, Xoff1
Receiver compares Xon2, Xoff2
Transmit Xon1, Xoff1
Receiver compares Xon1 or Xon2, Xoff1 or Xoff2
Transmit Xon2, Xoff2
Receiver compares Xon1 or Xon2, Xoff1 or Xoff2
Transmit Xon1 and Xon2, Xoff1 and Xoff2
Receiver compares Xon1 and Xon2, Xoff1 and Xoff2
No transmit flow control
Receiver compares Xon1 and Xon2, Xoff1 and Xoff2
ONTROL
T
RANSMIT AND
F
UNCTIONS
R
ECEIVE
S
OFTWARE
F
LOW
C
REV. 1.0.0
ONTROL
Table 18