82C50A_06 Datasheet, PDF (2/25 Pages) Intersil Corporation – CMOS Asynchronous

82C50A
Functional Diagram
CSO 12
CS1 13
CS2 14
ADS 25
A0
28
A1
27
A2
26
MR 35
DISTR 22
DISTR 21
DOSTR 19
DOSTR 18
D0
1
D1
2
D2
3
D3
4
D4
5
D5
6
D6
7
D7
8
MICROPROCESSOR INTERFACE
24 CSOUT
23 DDIS
INTERRUPT _{30 INTRPT}
ENABLE,
ID, & CONTROL
UART
RECEIVER
LINE STATUS ^{DIVISOR LATCH}
AND CONTROL ^{AND BAUD RATE}
GENERATOR
TRANSMITTER
MODEM
MODEM CONTROL
MODEM STATUS
10
SIN
9
RCLK
15 BAUDOUT
16 XTAL1
17 XTAL2
11
SOUT
32
RTS
33
DTR
34
OUT1
31
OUT2
36
CTS
37
DSR
38
DCD
39
RI
2
FN2958.5
August 24, 2006