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參數資料
型號: W83877TF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
英文描述: Multi-Function I/O Port Controller(用于個人計算機的多功能輸入/輸出口控制器)
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數: 80/154頁
文件大小: 821K
代理商: W83877TF
W83877TF
Publication Release Date: March 1998
- 135 -
Version 0.61
9.3.5 EPP Data or Address Write Cycle Timing Parameters
PARAMETER
SYM.
MIN.
MAX.
UNIT
Ax Valid to IOW Asserted
t1
40
nS
SD Valid to Asserted
t2
10
nS
IOW Deasserted to Ax Invalid
t3
10
nS
WAIT Deasserted to IOCHRDY Deasserted
t4
0
nS
Command Asserted to WAIT Deasserted
t5
10
nS
IOW Deasserted to IOW or IOR Asserted
t6
40
nS
IOCHRDY Deasserted to IOW Deasserted
t7
0
24
nS
WAIT Asserted to Command Asserted
t8
60
160
nS
IOW Asserted to WAIT Asserted
t9
0
70
nS
PBDIR Low to WRITE Asserted
t10
0
nS
WAIT Asserted to WRITE Asserted
t11
60
185
nS
WAIT Asserted to WRITE Change
t12
60
185
nS
IOW Asserted to PD Valid
t13
0
50
nS
WAIT Asserted to PD Invalid
t14
0
nS
PD Invalid to Command Asserted
t15
10
nS
IOW to Command Asserted
t16
5
35
nS
WAIT Asserted to Command Asserted
t17
60
210
nS
WAIT Deasserted to Command Deasserted
t18
60
190
nS
Command Asserted to WAIT Deasserted
t19
0
10
μ
S
Time out
t20
10
12
μ
S
nS
Command Deasserted to WAIT Asserted
t21
0
IOW Deasserted to WRITE Deasserted and PD
invalid
t22
0
nS
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