W83877 Winbond Electronics Corp America, W83877 Datasheet - Page 110

• Manufacturer Part Number: W83877
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

9.3.7 EPP Data or Address Write Cycle Timing Parameters, continued
9.3.8 Parallel Port FIFO Timing Parameters
9.3.9 ECP Parallel Port Forward Timing Parameters
9.3.10 ECP Parallel Port Reverse Timing Parameters
10.0 TIMING WAVEFORMS
nAUTOFD Valid to nSTROBE Asserted
PD Valid to nSTROBE Asserted
BUSY Deasserted to nAUTOFD Changed
BUSY Deasserted to PD Changed
nSTROBE Deasserted to BUSY Deasserted
BUSY Deasserted to nSTROBE Asserted
nSTROBE Asserted to BUSY Asserted
BUSY Asserted to nSTROBE Deasserted
PD Valid to nACK Asserted
nAUTOFD Deasserted to PD Changed
nAUTOFD Asserted to nACK Asserted
nAUTOFD Deasserted to nACK Deasserted
nACK Deasserted to nAUTOFD Asserted
PD Changed to nAUTOFD Deasserted
DATA Valid to nSTROBE Active
nSTROBE Active Pulse Width
DATA Hold from nSTROBE Inactive
BUSY Inactive to PD Inactive
BUSY Inactive to nSTROBE Active
nSTROBE Active to BUSY Active
Time out
Command Deasserted to WAIT Asserted
IOW Deasserted to WRITE Deasserted and PD
invalid
PARAMETER
PARAMETER
PARAMETER
PARAMETER
- 110 -
SYMBOL
SYMBOL
SYMBOL
SYM.
t1
t2
t3
t4
t5
t6
t1
t2
t3
t4
t5
t6
t7
t8
t1
t2
t3
t4
t5
t6
t20
t21
t22
MIN.
MIN.
MIN.
600
600
450
680
MIN.
80
80
80
80
80
80
80
0
0
0
0
10
0
0
0
0
0
0
MAX.
MAX.
MAX.
MAX.
200
200
500
180
180
200
180
60
60
12
W83877F
UNIT
UNIT
UNIT
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
S