參數(shù)資料
型號: W83977CTF-AW
英文描述: PERIPHERAL (MULTIFUNCTION) CONTROLLER
中文描述: 周邊(多功能)控制器
文件頁數(shù): 143/161頁
文件大?。?/td> 592K
代理商: W83977CTF-AW
W83977EF/ CTF
PRELIMINARY
Publication Release Date: March 1999
-134 -
Revision A1
11.3.6
Parallel Port FIFO Timing Parameters
PARAMETER
SYMBOL
MIN.
MAX.
UNIT
DATA Valid to nSTROBE Active
t1
600
nS
nSTROBE Active Pulse Width
t2
600
nS
DATA Hold from nSTROBE Inactive
t3
450
nS
BUSY Inactive to PD Inactive
t4
80
nS
BUSY Inactive to nSTROBE Active
t5
680
nS
nSTROBE Active to BUSY Active
t6
500
nS
11.3.7 ECP Parallel Port Forward Timing Parameters
PARAMETER
SYMBOL
MIN.
MAX.
UNIT
nAUTOFD Valid to nSTROBE Asserted
t1
0
60
nS
PD Valid to nSTROBE Asserted
t2
0
60
nS
BUSY Deasserted to nAUTOFD Changed
t3
80
180
nS
BUSY Deasserted to PD Changed
t4
80
180
nS
nSTROBE Deasserted to BUSY Deasserted
t5
0
nS
BUSY Deasserted to nSTROBE Asserted
t6
80
200
nS
nSTROBE Asserted to BUSY Asserted
t7
0
nS
BUSY Asserted to nSTROBE Deasserted
t8
80
180
nS
11.3.8 ECP Parallel Port Reverse Timing Parameters
PARAMETER
SYMBOL
MIN.
MAX.
UNIT
PD Valid to nACK Asserted
t1
0
nS
nAUTOFD Deasserted to PD Changed
t2
0
nS
nAUTOFD Asserted to nACK Asserted
t3
0
nS
nAUTOFD Deasserted to nACK Deasserted
t4
0
nS
nACK Deasserted to nAUTOFD Asserted
t5
80
200
nS
PD Changed to nAUTOFD Deasserted
t6
80
200
nS
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