am79c988a ETC-unknow, am79c988a Datasheet - Page 11

• Manufacturer Part Number: am79c988a
• Description: Quad Integrated Ethernet Transceiver Quiet
• Manufacturer: ETC-unknow

CMOS/PAUI Mode Selection
This command sets the QuIET interface drivers (PDO,
PDI, PCI) to be driven at normal PAUI signal levels or
CMOS voltage levels. The default is PAUI levels. Refer
to the DC Characteristics table for voltage levels.
K
Reset Function
The QuIET device enters the reset state when the reset
pin (RST) is held LOW. All ports, status registers, and
command registers are put into their default state. When
powering up the device, the RST pin should be held
LOW for 150 microseconds ( s). At other times, the RST
pin should be held LOW for a minimum of 4 s. The
default conditions are detailed below.
0
1
CMOS Levels
PAUI Levels
P R E L I M I N A R Y
Am79C988A
Command
Extended Distance
Link Test
Link Pulse Transmit
Correct Polarity
Loopback Test
Transceiver Mode Selection
CMOS/PAUI Mode
Status
Device
Link
Polarity
Jabber
Command and Status Default Conditions
Default
Default
QuIET
Fail
Correct
No Error
Disabled
Enabled
Enabled
Disabled
Disabled
Normal
PAUI Mode
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