AM79C970AKCW AMD [Advanced Micro Devices], AM79C970AKCW Datasheet - Page 179
AM79C970AKCW
Manufacturer Part Number
AM79C970AKCW
Description
PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM79C970AKCW.pdf
(219 pages)
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SWITCHING CHARACTERISTICS: 10BASE-T Interface
Note:
1. Not tested; parameter guaranteed by characterization.
Transmit Timing
Receiving Timing
Collision Detection and SQE Test
Parameter
Symbol
tPWROFF
tXMTOFF
tCOLOFF
tPWNRD
tXMTON
tRCVON
tRCVON
tCOLON
tPWPLP
tPERLP
tPWLP
tTETD
tJREC
tRETD
tTM
tJR
tTR
tTF
tJA
Parameter Description
Transmit Start of Idle
Transmitter Rise Time
Transmitter Fall Time
Transmitter Rise and Fall Time Mismatch
XMT Asserted Delay
XMT Deasserted Delay
Idle Signal Period
Idle Link Pulse Width
Predistortion Idle Link Pulse Width
Transmit Jabber Activation Time
Transmit Jabber Reset Time
Transmit Jabber Recovery Time
(Minimum time gap between
transmitted frames to prevent
jabber activation)
RXD Pulse Width Not to Turn Off
Internal Carrier Sense
RXD Pulse Width To Turn Off
Receive Start of Idle
RCV Asserted Delay
RCV Deasserted Delay
COL Asserted Delay
COL Deasserted Delay
P R E L I M I N A R Y
Am79C970A
Test Conditions
(10% to 90%)
(90% to 10%)
(tTM = |tTR – tTF|)
(Note 1)
(Note 1)
VIN > VTHS (min)
VIN > VTHS (min)
TRON
Min
250
250
136
200
750
– 50
1.0
20
75
45
20
20
20
8
TRON
+ 100
Max
350
100
120
150
750
200
900
5.5
5.5
62
24
55
62
62
1
AMD
Unit
ms
ms
ms
ms
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
179
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