TL16C550D_09 Datasheet, PDF (7/54 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH AUTOFLOW CONTROL

TL16C550D, TL16C550DI
www.ti.com .................................................................................................................................................. SLLS597E – APRIL 2004 – REVISED DECEMBER 2008
FUNCTIONAL BLOCK DIAGRAM (For ZQS Package)
Internal ⁸
Data Bus
5 -3
32-29
D(7- 0)
Data
Bus
Buffer
S
e
l
e
c
8
t
Receiver
Buffer
Register
Receiver
FIFO
Receiver
Shift
Register
C1 _SIN
A0 ^D5
A1 ^E5
A2 ^E4
D1
CS2
MR ^B5
D3
RD1
WR1 ^D2
Select
and
Control
Logic
XIN ^E1
XOUT ^E2
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
Receiver
Timing and
Control
Transmitter
Timing and
Control
8 ^Transmitter
Shift
Register
Modem
Control
Logic
C5
RTS
Autoflow
Control
(AFE)
C2
SOUT
C4
CTS
V_CC ^A5
V_SS ^E3
Power
Supply
Interrupt
Enable
Register
8 ^Interrupt
Control
Logic
Interrupt
8
Identification
Register
FIFO
Control
Register
D4 _INTRPT
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