W83977A Winbond Electronics Corp America, W83977A Datasheet - Page 140

• Manufacturer Part Number: W83977A
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

12.3.2 UART/Parallel Port
12.3.3 Parallel Port Mode Parameters
PARAMETER
PD0-7, INDEX, STROBE, AUTOFD Delay from
IRQ Delay from ACK , nFAULT
IRQ Delay from IOW
IRQ Active Low in ECP and EPP Modes
IOW
ERROR Active to IRQ Active
PARAMETER
Delay from Stop to Set Interrupt
Delay from IOR Reset Interrupt
Delay from Initial IRQ Reset to
Transmit Start
Delay from IOW to Reset interrupt
Delay from Initial IOW to interrupt
Delay from Stop to Set Interrupt
Delay from IOR to Reset Interrupt
Delay from IOR to Output
Set Interrupt Delay from Modem
Input
Reset Interrupt Delay from IOR
Interrupt Active Delay
Interrupt Inactive Delay
Baud Divisor
SYMBOL
T
T
T
T
T
T
T
T
T
T
MWO
T
T
SINT
RINT
SIM
RIM
IRS
STI
IAD
HR
N
IID
SI
IR
- 129 -
TEST
CONDITIONS
100 pf Loading
100 pf Loading
100 pF Loading
100 pF Loading
100 pF Loading
100 pF Loading
100 pF Loading
SYM.
t1
t2
t3
t4
t5
MIN.
200
Publication Release Date: March 1998
MIN.
TYP.
9/16
1/16
9/16
PRELIMINARY
MAX.
W83977TF
100
105
300
105
MAX.
60
16/16
2
8/16
175
250
200
250
250
1/2
25
30
16
1
-1
Revision 0.62
UNIT
UNIT
Baud
Baud
Baud
Baud
nS
nS
nS
nS
nS
Rate
Rate
Rate
Rate
nS
nS
nS
nS
nS
nS
nS
S