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參數(shù)資料
型號: W83877AF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設(shè)及接口
英文描述: Multi-Function I/O Port Controller(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(shù): 148/171頁
文件大小: 1634K
代理商: W83877AF
W83877AF
Publication Release Date: Sep. 1996
Preliminary Version 0.50
- 146 -
9.3.5 Parallel Port Mode Parameters
PARAMETER
SYM.
MIN.
TYP.
MAX.
UNIT
PD0-7, INDEX, STROBE, AUTOFD Delay from
IOW
t1
100
nS
IRQ Delay from ACK, nFAULT
t2
60
nS
IRQ Delay from IOW
IRQ Active Low in ECP and EPP Modes
t3
105
nS
t4
200
300
nS
ERROR Active to IRQ Active
t5
105
nS
9.3.6 EPP Data or Address Read Cycle Timing Parameters
PARAMETER
SYM.
MIN.
MAX.
UNIT
Ax Valid to IOR Asserted
t1
40
nS
IOCHRDY Deasserted to IOR Deasserted
t2
0
nS
IOR Deasserted to Ax Valid
t3
10
10
nS
IOR Deasserted to
IOW
or IOR Asserted
t4
40
IOR Asserted to IOCHRDY Asserted
PD Valid to SD Valid
t5
0
24
nS
t6
t7
0
0
75
40
nS
μ
S
nS
nS
IOR Deasserted to SD Hi-Z (Hold Time)
SD Valid to IOCHRDY Deasserted
t8
t9
0
60
85
160
WAIT Deasserted to IOCHRDY Deasserted
PD Hi-Z to PDBIR Set
t10
0
nS
WRITE Deasserted to IOR Asserted
t13
0
nS
WAIT Asserted to WRITE Deasserted
t14
0
185
nS
Deasserted to WRITE Modified
t15
60
190
nS
IOR Asserted to PD Hi-Z
t16
0
50
nS
WAIT Asserted to PD Hi-Z
Command Asserted to PD Valid
t17
60
180
nS
t18
0
nS
Command Deasserted to PD Hi-Z
t19
0
nS
WAIT Deasserted to PD Drive
t20
60
190
nS
WRITE Deasserted to Command
t21
1
nS
相關(guān)PDF資料
PDF描述
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