SC28L92 Philips Semiconductors, SC28L92 Datasheet - Page 6

• Manufacturer Part Number: SC28L92
• Description: 3.3V-5.0V Dual Universal Asynchronous Receiver/Transmitter DUART
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2000 Jan 21
3.3V–5.0V Dual Universal Asynchronous
Receiver/Transmitter (DUART)
RESET
X1/CLK
INTRN
D0–D7
A0–A3
WRN
CEN
RDN
X2
4
8
OPERATION CONTROL
INTERRUPT CONTROL
R/W CONTROL
BUS BUFFER
SELECTORS
GENERATOR
BAUD RATE
COUNTER/
ADDRESS
XTAL OSC
DECODE
CLOCK
TIMING
TIMER
CSRB
CSRA
IMR
ACR
CTU
ISR
CTL
GP
Figure 1. Block Diagram (80XXX mode)
6
16 BYTE TRANSMIT
WATCH DOG TIMER
16 BYTE RECEIVE
SHIFT REGISTER
SELECT LOGIC
DETECTORS (4)
RECEIVE SHIFT
OUTPUT PORT
CHANNEL A
CHANNEL B
INPUT PORT
CHANGE OF
(AS ABOVE)
FUNCTION
TRANSMIT
REGISTER
MRA0, 1, 2
OPCR
STATE
FIFO
FIFO
OPR
CRA
SRA
IPCR
ACR
7
8
Product specification
SC28L92
SD00685
TxDA
RxDA
TxDB
RxDB
IP0-IP6
OP0-OP7
V
V
CC
SS