XR16M598 Datasheet, PDF (46/58 Pages) Exar Corporation – 1.62V TO 3.63V HIGH PERFORMANCE OCTAL UART WITH 16-BYTE FIFO

XR16M598
1.62V TO 3.63V HIGH PERFORMANCE OCTAL UART WITH 16-BYTE FIFO
REV. 1.0.0
EFR[3:0]: Software Flow Control Select
Combinations of software flow control can be selected by programming these bits, as shown in Table 18
below.
TABLE 18: SOFTWARE FLOW CONTROL FUNCTIONS
EFR BIT-3
0
0
1
0
1
X
X
X
1
0
1
0
EFR BIT-2
0
0
0
1
1
X
X
X
0
1
1
0
EFR BIT-1
0
X
X
X
X
0
1
0
1
1
1
1
EFR BIT-0
TRANSMIT AND RECEIVE SOFTWARE FLOW CONTROL
0
No TX and RX flow control (default and reset)
X
No transmit flow control
X
Transmit Xon1, Xoff1
X
Transmit Xon2, Xoff2
X
Transmit Xon1 and Xon2, Xoff1 and Xoff2
0
No receive flow control
0
Receiver compares Xon1, Xoff1
1
Receiver compares Xon2, Xoff2
1
Transmit Xon1, Xoff1
Receiver compares Xon1 or Xon2, Xoff1 or Xoff2
1
Transmit Xon2, Xoff2
Receiver compares Xon1 or Xon2, Xoff1 or Xoff2
1
Transmit Xon1 and Xon2, Xoff1 and Xoff2
Receiver compares Xon1 and Xon2, Xoff1 and Xoff2
1
No transmit flow control
Receiver compares Xon1 and Xon2, Xoff1 and Xoff2
4.14 XOFF1, XOFF2, XON1 and XON2 Registers - Write Only
These registers are used to program the Xoff1, Xoff2, Xon1 and Xon2 control characters respectively.
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