XR88C92_05 Datasheet, PDF (27/32 Pages) Exar Corporation – DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER

XR88C92/192
RX
RX
ENABLE
-RxRDY
-FFULL
-RxRDY/
-FFULL
-IOR
OVERRUN
ERROR
-RTS
TX
TX
ENABLE
-TxRDY
-IOW
-CTS
-RTS
Rev. 1.33
D1
D2
D8
D9
D10
D11
D12
D13
D12, D13 Will be lost
due to RX disable
Status Data
(D1)
D11 Will be lost
due to overrun
Status Data Status Data Status Data
(D2)
(D3)
(D10)
Reset by
command
Figure 6: Receive Timing
XR92-RX
D1
D2
D3
Break
D4
D5
Figure 7: Transmit Timing
27
XR692-TX