TL16C550D_09 Datasheet, PDF (5/54 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH AUTOFLOW CONTROL

TL16C550D, TL16C550DI
www.ti.com .................................................................................................................................................. SLLS597E – APRIL 2004 – REVISED DECEMBER 2008
FUNCTIONAL BLOCK DIAGRAM (For PT and PFB Packages)
Internal ⁸
Data Bus
4 -2
47-43
D(7- 0)
Data
Bus
Buffer
S
e
l
e
c
8
t
Receiver
Buffer
Register
Receiver
FIFO
Receiver
Shift
Register
7 _SIN
28
A0
A1 ²⁷
A2 ²⁶
9
CS0
CS1 ¹⁰
11
CS2
ADS ²⁴
MR ³⁵
19
RD1
RD2 ²⁰
WR1 ¹⁶
17
WR2
22
DDIS
TXRDY ²³
XIN ¹⁴
XOUT ¹⁵
RXRDY ²⁹
Select
and
Control
Logic
V_CC ⁴²
V_SS ¹⁸
Power
Supply
Line
Control
Register
Divisor
Latch (LS)
Divisor
Latch (MS)
Line
Status
Register
Transmitter
Holding
Register
Modem
Control
Register
Modem
Status
Register
Baud
Generator
Transmitter
S
FIFO
e
l
8
e
c
t
8
8
Interrupt
Enable
Register
8 ^Interrupt
Control
Logic
Interrupt
8
Identification
Register
FIFO
Control
Register
Receiver
Timing and
Control
Transmitter
Timing and
Control
8 ^Transmitter
Shift
Register
Modem
Control
Logic
5 _RCLK
32
RTS
12 _BAUDOUT
Autoflow Control
(AFE)
8
SOUT
38
CTS
33 _DTR
39 _DSR
40 _DCD
41 _RI
34 _OUT1
31 _OUT2
30 _INTRPT
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