參數(shù)資料
型號: LM9830
廠商: National Semiconductor Corporation
英文描述: LM9830 36-Bit Color Document Scanner
中文描述: LM9830 36位彩色文件掃描儀
文件頁數(shù): 8/45頁
文件大?。?/td> 566K
代理商: LM9830
8
http://www.national.com
Timing Diagrams
STROBE
BUSY
Address
D0 - D7
Figure 1: Parallel Port Address Write
SELECT IN
t
SETUP1
t
SETUP2
AUTOFEED
t
SI-B1
t
B-SI
t
HOLD1
t
HOLD2
t
SI-B2
STROBE
BUSY
Data
D0 - D7
Figure 2: Parallel Port Data Write
SELECT IN
t
SETUP1
t
SETUP2
AUTOFEED
t
B-AF1
t
HOLD2
t
HOLD1
t
AF-B1
t
AF-B2
STROBE
BUSY
Data
D0 - D7
Figure 3: Parallel Port 8 Bit Data Read
SELECT IN
t
EPP ACCESS
AUTOFEED
t
AF-B3
t
B-AF2
t
EPP HOLD
t
AF-B4
STROBE
BUSY
Figure 4: Parallel Port Nibble Data Read
SELECT IN
t
NIB ACCESS1
AUTOFEED
t
AF-B3
t
B-AF2
t
NIB ACCESS2
ERROR (D0, D4)
SELECT (D1, D5)
PE (D2, D6)
ACK (D3, D7)
D7-D4
D3-D0
t
AF-B4
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