參數(shù)資料
型號: 935056380512
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8 CHANNEL(S), 115.2K bps, SERIAL COMM CONTROLLER, PQCC84
封裝: PEDESTAL, PLASTIC, MO-047AF, SOT-189-3, LCC-84
文件頁數(shù): 24/29頁
文件大?。?/td> 167K
代理商: 935056380512
Philips Semiconductors
Product specification
SCC2698B
Enhanced octal universal asynchronous
receiver/transmitter (Octal UART)
2000 Jan 31
4
BLOCK DIAGRAM
8
D0–D7
RDN
WRN
CEN
A0–A5
RESET
X1/CLK
X2
6
BUS BUFFER
OPERATION CONTROL
ADDRESS
DECODE
R/W CONTROL
TIMING
CHANNEL A
MR1, 2
CR
SR
INPUT PORT
OUTPUT PORT
OPCR
CSR Rx
CSR Tx
CRYSTAL
OSCILLATOR
POWER-ON
LOGIC
BLOCK B
(SAME AS A)
TRANSMIT HOLD
REGISTER
TRANSMIT SHIFT
REGISTER
RECEIVE HOLD
REGISTER (3)
RECEIVE SHIFT
REGISTER
CHANGE-OF-
STATE
DETECTORS (4)
IPCR
ACR
FUNCTION SELECT
LOGIC
CHANNEL B
(AS ABOVE)
TIMING
CLOCK
SELECTORS
COUNTER/
TIMER
ACR
CTUR
CTLR
INTERRUPT CONTROL
IMR
ISR
BLOCK C
(SAME AS A)
BLOCK D
(SAME AS A)
INTERNAL DATA
BUS
TxDA
RxDA
TxDb
RxDb
MPI0
MPIb
MPP1
MPP2
MPO
INTRAN
BLOCK A
2
TIMING
CONTROL
SD00185
2
Figure 2. Block Diagram
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