xr68c92 Exar Corporation, xr68c92 Datasheet - Page 3
xr68c92
Manufacturer Part Number
xr68c92
Description
Xr68c92 -dual Uart With Eight Bytes Transmit And Receive Fifo
Manufacturer
Exar Corporation
Datasheet
1.XR68C92.pdf
(33 pages)
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Block Diagram
-DTACK
-RESET
-IACK
Rev. 1.33
D0-D7
XTAL1
XTAL2
A0-A3
R/-W
-INT
-CS
3
Transmit
Registers
Registers
Transmit
Registers
Registers
Control
Receive
Control
Control
Receive
Control
FIFO
FIFO
FIFO
FIFO
Logic
Logic
Logic
Logic
Flow
Flow
Flow
Flow
Channel A
Channel B
XR68C92/192
Purpose
Control
Multi-
Logic
Transmit
Transmit
Register
Register
Register
Register
Receive
Receive
I/O
Shift
Shift
Shift
Shift
Watch
Watch
Timer
Timer
Dog
Dog
OP0-OP7
TXA
RXA
TXB
RXB
IP0-IP5
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