sc68c652b NXP Semiconductors, sc68c652b Datasheet - Page 3

• Manufacturer Part Number: sc68c652b
• Description: Sc68c652b 5 V, 3.3 V And 2.5 V Dual Uart, 5 Mbit/s Max. With 32-byte Fifos, Irda Encoder/decoder, And Motorola Up Interface
• Manufacturer: NXP Semiconductors

Philips Semiconductors
4. Block diagram
9397 750 14657
Product data sheet
Fig 1. Block diagram of SC68C652B
RXRDYA, RXRDYB
TXRDYA, TXRDYB
D0 to D7
A0 to A3
RESET
R/W
IRQ
CS
SC68C652B
INTERRUPT
REGISTER
CONTROL
CONTROL
DATA BUS
SELECT
LOGIC
LOGIC
LOGIC
AND
Rev. 01 — 25 April 2005
Dual UART with 32-byte FIFOs and IrDA encoder/decoder
XTAL1
GENERATOR
CLOCK AND
BAUD RATE
TRANSMIT
REGISTER
REGISTER
CONTROL
CONTROL
RECEIVE
LOGIC
LOGIC
FLOW
FLOW
FIFO
FIFO
XTAL2
TRANSMIT
REGISTER
REGISTER
RECEIVE
SHIFT
SHIFT
CONTROL
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
MODEM
LOGIC
ENCODER
DECODER
SC68C652B
IR
IR
002aab323
TXA, TXB
RXA, RXB
DTRA, DTRB
RTSA, RTSB
OP2A, OP2B
CTSA, CTSB
RIA, RIB
CDA, CDB
DSRA, DSRB
3 of 41