TL16PNP550A Datasheet, PDF (4/40 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH PLUG-AND-PLAY (PnP) AND AUTOFLOW CONTROL

TL16PNP550A
ASYNCHRONOUS COMMUNICATIONS ELEMENT
WITH PLUG-AND-PLAY (PnP) AND AUTOFLOW CONTROL
SLLS190B – MARCH 1995 – REVISED MARCH 1996
functional block diagram
CLK From Prescalar
To ISA Bus
A0 – A2
IOW
32 – 34
3
9
IOR
8
10 – 13, 15 – 18
D0 – D7
8
CS_IN
ACE
MR
6
51
49
60
50
59
61
62
INTRPT
SIN
SOUT
RTS
CTS
DTR
DCD
RI
DSR
To RS–232
Transceivers
To External
Logical Device
7
UARTBYPASS
30
CS
A0 – A11
32 – 38, 40 – 44
8 _{10 – 13, 15 – 18}
D0 – D7
8
RESETDRV
45
To ISA
AEN
46
Bus
IOW
9
8
IOR
IRQ 3 – 7, 9 – 12, 15
19 – 21, 23 – 29
8
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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