20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 223

• Manufacturer Part Number: 20-668-0024
• Description: IC CPU RABBIT4000 128-LQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 20-668-0024

• Processor Type: Rabbit 4000 8-bit
• Speed: 60MHz
• Voltage: 2.5V, 2.7V, 3V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: 20-668-0022; 316-1078

Chapter 20 10Base-T Ethernet
Bit(s)
Bit(s)
3:2
3:0
7
6
5
4
1
0
7
6
5
4
Network Port A Status Register
Network Port A Reset Register
Value
Value
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
This bit is unused.
Link operating half-duplex.
Link operating full-duplex.
This bit is unused.
Auto-negotiation process not completed.
Auto-negotiation process completed.
These bits are unused.
Link is down.
Link is up.
No jabber condition detected.
Jabber condition detected. A jabber condition automatically halts the DMA
channel sourcing the data for the transmitter and disables the transmit DMA
request. The network port transmitter must be reset to clear this condition.
No operation.
Reset the network port transmitter. This command clears the jabber condition and
purges the transmit FIFO. It does not affect a transmit operation in progress and
should only be written when the transmitter are disabled and in an idle state.
No operation.
Reset the network port receiver. This command clears all of the error counters
and purges the receive FIFO. It does not affect a receive operation in progress
and should only be written when the receiver is disabled and in an idle state.
No operation.
Purge the network port transmit FIFO.
No operation.
Purge the network port receive FIFO.
These bits are ignored and should always be written as zeros.
(NASR)
(NARR)
Description
Description
(Address = 0x0206)
(Address = 0x0205)
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