AM79C976KI AMD (ADVANCED MICRO DEVICES), AM79C976KI Datasheet - Page 198

• Manufacturer Part Number: AM79C976KI
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79C976KI

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 2.97V
• Operating Supply Voltage (max): 3.63V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 208
• Lead Free Status / RoHS Status: Not Compliant

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198
IFS1
example, programming IPG to
63h has the same effect as pro-
gramming it to 60h.
CAUTION: Use this parameter
with care. By lowering the IPG
below the IEEE 802.3 standard
96 bit times, the Am79C976 con-
troller can interrupt normal net-
work behavior.
Read/Write accessible. IPG is set
to
H_RESET or S_RESET and is
not affected by STOP.
Changing IFS1 allows the user to
program the value of the Inter-
Frame-SpacePart1 timing. The
Am79C976 controller sets the de-
InterFrameSpacingPart1.
60h
(96
Bit
P R E L I M I N A R Y
times)
Am79C976
by
fault value at 60 bit times (3ch).
See the subsection on Medium
Allocation in the section Media
IFS1 = IPG - 36 bit times
IPG should be programmed to
the nearest nibble. The two least
significant bits are ignored. For
example, programming IPG to
63h has the same effect as pro-
gramming it to 60h.
Read/Write accessible. IFS1 is
set to 3ch (60 bit times) by
H_RESET or S_RESET and is
not affected by STOP.
Access Management for more
details. The equation for setting
IFS1 when IPG ≥ 96 bit times is:
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