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參數資料
型號: W83759A
廠商: WINBOND ELECTRONICS CORP
英文描述: ADVANCED VL-IDE DISK CONTROLLER
中文描述: 先進的VL - IDE磁盤控制器
文件頁數: 35/41頁
文件大?。?/td> 334K
代理商: W83759A
W83759A
Publication Release Date: May 1995
- 35 -
Revision A1
TIMING WAVEFORMS
All AC timing is measured from the 0.8V and 2.0V on the source signal to the 0.8V and 2.0V level on
the signal under test.
LCLK, SYSRST , Timing
t1
t2
t3
t4
t5
t6
LCLK
ENIDE, TEST
SP1, MD1, MD0
PRDYEN, SRDYEN
IDD[15:0], EMD1, EMD0
SYSRST
DMASL
Figure 1
Note: ENIDE, TEST, SP1, MD1, MD0, PRDYEN, SRDYEN, IDD[15:0], EMD1, EMD0, DMASL are POS (Power-On Setting)
pins. When
SYSRST
is low they are tri-stated as inputs.
VESA IO Read Timing
t7
t8
t11
t12
Local IDE Time
T1
T2
t15
t16
t13
t14
t9
t10
LCLK
HD[31:0]
LADS
HA[9:2],
BE2, BE0
HMIO = 0
HDC = 1
HWR = 0
LDEV
RDYRTN
LRDY
Figure 2
Note: Local IDE cycle time is determined by SP1, MD1, and MD0 or by SP1, EMD1 and EMD0 at power-on. After power-on the
driver can program the timing register to tune the timing.
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相關代理商/技術參數
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