AM79C971VCW Advanced Micro Devices, AM79C971VCW Datasheet - Page 205

• Manufacturer Part Number: AM79C971VCW
• Description: PCnet-FAST Single-Chip Full-Duplex 10/100 Mbps Ethernet Controller for PCI Local Bus
• Manufacturer: Advanced Micro Devices

SWITCHING CHARACTERISTICS: BUS INTERFACE (CONCLUDED)
Note:
Address is the EBUA_EBA[7:0] bus. Data is the EBDA[15:8] and the EBD[7:0] buses.
Parameter
Symbol
Expansion Bus Interface Timing
F
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CYC
HIGH
LOW
FALL
RISE
v_A_D
CS_L
CS_H
s_D
h_D
_AS_H
_AS_L
_OE_H
_LZ
_HZ
_WE_L
_WE_H
_WE_CSAD
CLK
Parameter Name
EBCLK Frequency
EBCLK Period
EBCLK High Time
EBCLK Low Time
EBCLK Fall Time
EBCLK Rise Time
Address and Data valid time from the
rising edge of EBCLK
ERAMCS assert time from the rising
edge of EBCLK
ERAMCS deassert time from rising
edge of EBCLK
Data setup time to the rising edge of
EBCLK
Data hold time from the rising edge of
EBCLK
AS_EBOE (Address Strobe) rising
edge from the falling edge of EBCLK
AS_EBOE falling edge from the
rising edge of EBCLK
AS_EBOE (Output enable deassert)
rising edge from the rising edge of
EBCLK
Data Bus driving from the rising edge
of EBCLK
Data Bus tristated from the rising
edge of EBCLK
EBWE assert time from the falling
edge of EBCLK
EBWE deassert time from the rising
edge of EBCLK
EBWE setup time to Address,
ERAMCS, and Data
Test Condition
@ 1.5 V
@ 2.0 V
@ 0.8 V
over 2 V p-p
over 2 V p-p
Am79C971
Min
2.5
30
12
12
1
1
7
0
6
10
10
7
5
1
Max
33
400
4
4
13
13
10
13
13
13
6
10
Unit
MHz
ns
ns
ns
V/ns
V/ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
205