參數(shù)資料
型號: 933968320518
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 29/34頁
文件大小: 250K
代理商: 933968320518
Philips Semiconductors
Product specification
SCC2692
Dual asynchronous receiver/transmitter (DUART)
1998 Sep 04
4
BLOCK DIAGRAM
8
D0–D7
RDN
WRN
CEN
A0–A3
RESET
INTRN
X1/CLK
X2
4
BUS BUFFER
OPERATION CONTROL
ADDRESS
DECODE
R/W CONTROL
INTERRUPT CONTROL
IMR
ISR
TIMING
BAUD RATE
GENERATOR
CLOCK
SELECTORS
COUNTER/
TIMER
XTAL OSC
CSRA
CSRB
ACR
CTLR
CHANNEL A
TRANSMIT
HOLDING REG
TRANSMIT
SHIFT REGISTER
RECEIVE
HOLDING REG (3)
RECEIVE
SHIFT REGISTER
MRA1, 2
CRA
SRA
INPUT PORT
CHANGE OF
STATE
DETECTORS (4)
OUTPUT PORT
FUNCTION
SELECT LOGIC
OPCR
TxDA
RxDA
IP0-IP6
OP0-OP7
VCC
GND
CONTROL
TIMING
INTERNAL
DA
T
ABUS
CHANNEL B
(AS ABOVE)
IPCR
ACR
OPR
CTLR
U
RxDB
TxDB
8
7
SD00132
Figure 2. Block Diagram
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