MB86967 Datasheet, PDF (103/129 Pages) Fujitsu Component Limited. – LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces

MB86967
(14)General-purpose Bus Mode Write Cycle
(VDD = +5 V ± 5%, GND = 0 V, Ta = 0°C to +70°C)
Parameter
Value
Symbol
Unit
Min.
Typ.
Max.
Address setup time (from IOW assert)
Address hold time (from IOW negate)
IOW pulse width
t1
3
—
—
ns
t2
3
—
—
ns
t3
36
—
—
ns
Delay time for READY negate output
t4
7*²
—
26*²
ns
Delay time for READY assert output
t5
—
—
175*¹
ns
Delay time for READY assert output
t6
—
—
28/175*³
ns
Delay time for READY negate output
t7
—
—
28
ns
Setup time for write data input
t8
5
—
—
ns
Hold time for write data input
t9
6
—
—
ns
*1: READY is negated only when the write access is conflicted with that of the network on writing the buffer memory
port (BMR8).
This value would be 2.15 µs when the bus write error occurs on writing the buffer memory port.
*2: READY is negated only when the write access is conflicted with that of the network on writing the buffer memory
port (BMR8).
*3: Max time is 28 ns for normal write. Max time is 175 ns only when the write access is conflicted with that of the
network on writing the buffer memory port (BMR8). This value would be 2.15 µs when the bus write error
occurs on writing the buffer memory port.
SA3 to 0
BHE
ECS
t1
t3
t2
IOW
IOCHRDY^*
(READY)
IOCHRDY^*
(READY)
t5
t4
t6
t7
t8
t9
SD15 to 0
* : The IOCHRDY output terminal allows the RDYPNSEL terminal to toggle between READY (active high) and READY
(active low).
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