參數(shù)資料
型號: SCN68681
廠商: NXP Semiconductors N.V.
英文描述: Dual universal asynchronous receiver/transmitter (DUART)(雙通用異步接收器/傳送器)
中文描述: 雙路通用異步接收器/發(fā)送器(杜阿爾特)(雙通用異步接收器/傳送器)
文件頁數(shù): 19/28頁
文件大小: 187K
代理商: SCN68681
Philips Semiconductors
Product specification
SCN68681
Dual asynchronous receiver/transmitter (DUART)
1998 Sep 04
19
RESETN
t
RES
SD00109
Figure 3. Reset Timing
X1/CLK
A1–A4
RWN
CSN
D0–D7
DTACKN
t
CSC
t
AS
t
AH
t
RWS
t
DF
t
DAT
t
DAH
t
RWH
t
CSW
t
DD
t
CSD
t
DAL
t
DCR
SD00110
Figure 4. Bus Timing (Read Cycle)
X1/CLK
A1–A4
RWN
CSN
D0–D7
DTACKN
t
CSC
t
AS
t
AH
t
RWS
t
DH
t
DAT
t
DAH
t
RWH
t
CSW
t
DS
t
CSD
t
DCW
NOTE:
DACKN requires two rising edges of X1 clock after CEN is low.
SD00111
Figure 5. Bus Timing (Write Cycle)
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