am79c961 Advanced Micro Devices, am79c961 Datasheet - Page 113

• Manufacturer Part Number: am79c961
• Description: Pcnettm-isa Jumperless Single-chip Ethernet Controller For Isa
• Manufacturer: Advanced Micro Devices

SWITCHING CHARACTERISTICS: BUS MASTER MODE
Parameter
Input/Output Write Timing
Input/Output Read Timing
I/O To Memory Command Inactive
IOCS16 Timing
Master Mode Bus Acquisition
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
IOCS1
IOCS2
MMA1
MMA2
MMA3
MMA4
MMA5
t
IOW1
IOW2
IOW3
IOW4
IOW5
IOW6
IOW7
IOW8
IOW9
IOM2
IOR1
IOR2
IOR3
IOR4
IOR5
IOR6
IOR7
IOR8
IOM1
AEN, SBHE, SA0–9 Setup
to
AEN, SBHE,SA0–9 Hold
After
IOW Assertion
IOW Inactive
SD Setup to
SD Hold After
IOCHRDY Inactive
AEN, SBHE, SA0–9 Setup
to
AEN, SBHE,SA0–9 Hold
After
IOR Inactive
SD Hold After
SD Valid From
IOCHRDY Inactive
SD Valid From
AEN, SBHE, SA0–9 to
AEN, SBHE, SA0–9 to IOCS16
Tristated
REF Inactive to
DACK Inactive
SBHE, SA0–19, LA17–23
IOCHRDY to
IOCHRDY Delay From
IOCHRDY Delay From
IOW/MEMW to
(S)MEMR/IOR to
DRQ to
DACK to
MASTER to Active Command,
Parameter Description
IOW
IOR
IOW
IOR
DACK
MASTER
IOW
IOR
IOW
IOW
IOR
IOCHRDY
DACK
(S)MEMR/IOR
IOW/MEMW
IOCS16
IOR
IOW
P R E L I M I N A R Y
Test Conditions
Am79C961
–130
Min
100
125
125
125
10
55
10
10
15
55
55
55
55
5
0
0
5
0
0
0
0
0
5
0
Max
110
185
35
20
35
10
35
25
35
AMD
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1-587