TL16PNP550A_08 Datasheet, PDF (4/40 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH PLUG-AND-PLAY (PnP) AND AUTOFLOW CONTROL

TL16PNP550A
ASYNCHRONOUS COMMUNICATIONS ELEMENT
WITH PLUGĆANDĆPLAY (PnP) AND AUTOFLOW CONTROL
SLLS190B − MARCH 1995 − REVISED MARCH 1996
functional block diagram
CLK From Prescalar
To ISA Bus
A0 −A2
IOW
IOR
D0 −D7
8
32 −34
3
9
8
10 −13, 15 −18
CS_IN
ACE
MR
6
51
49
60
50
59
61
62
INTRPT
ą
SIN
SOUT
RTS
CTS
DTR
DCD
RI
DSR
To RS−232
Transceivers
To ISA
Bus
To External
Logical Device
7
UARTBYPASS
CS ³⁰
A0 −A11
8
D0 −D7
8
RESETDRV
AEN
IOW
IOR
IRQ 3 −7, 9 −12, 15
8
32 −38, 40 −44
10 −13, 15 −18
45
46
9
8
19 −21, 23 −29
47 _EXINTR
7 _UARTBYPASS
To External
Logical Device
55
57
54
PnP
58
Controller
52
53
66 67, 1 −4
68 ₄
2
SCLK
SIO
CS
EEPROM
PNPS1
PNPS0
To
EEPROM
XIN
XOUT
63
64 ^Oscillator
22 MHz
Divide by
12, 6, 3, 1
(prescalar)
CLK
(to the ACE)
4
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