sc16c2550-03 NXP Semiconductors, sc16c2550-03 Datasheet - Page 15
sc16c2550-03
Manufacturer Part Number
sc16c2550-03
Description
Sc16c2550 Dual Uart With 16 Bytes Of Transmit And Receive Fifos And Infrared Irda Encoder/decoder
Manufacturer
NXP Semiconductors
Datasheet
1.SC16C2550-03.pdf
(46 pages)
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Philips Semiconductors
9397 750 11621
Product data
Fig 6. Internal loop-back mode diagram.
RXRDYA, RXRDYB
TXRDYA, TXRDYB
INTA, INTB
CSA, CSB
RESET
D0–D7
A0–A2
IOW
IOR
SC16C2550
CONTROL LOGIC
INTERRUPT
REGISTER
DATA BUS
CONTROL
SELECT
data that is then made available at the user data interface D0-D7. The user optionally
compares the received data to the initial transmitted data for verifying error-free
operation of the UART TX/RX circuits.
In this mode, the receiver and transmitter interrupts are fully operational. The Modem
Control Interrupts are also operational.
LOGIC
LOGIC
AND
Dual UART with 16 bytes of transmit and receive FIFOs and IrDA
Rev. 03 — 19 June 2003
XTAL1
GENERATOR
CLOCK AND
BAUD RATE
TRANSMIT
REGISTER
REGISTER
RECEIVE
FIFO
FIFO
XTAL2
TRANSMIT
REGISTER
REGISTER
RECEIVE
CONTROL
SHIFT
SHIFT
MODEM
LOGIC
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
MCR[4] = 1
SC16C2550
002aaa120
encoder/decoder
TXA, TXB
RXA, RXB
RTSA, RTSB
CTSA, CTSB
DTRA, DTRB
DSRA, DSRB
(OP1A, OP1B)
RIA, RIB
(OP2A, OP2B)
CDA, CDB
15 of 46
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