20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 226

• 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

216
Network Port A Transmit Control Register
Network Port A Receive Control Register
Bit(s)
Bit(s)
5:0
7
6
7
6
5
4
3
2
1
0
Value
Value
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Disable transmitter.
Enable transmitter.
DMA request when FIFO is half empty.
DMA request when FIFO is one-fourth empty.
These bits are reserved and should be written with zeros.
Disable receiver.
Enable receiver.
DMA request when FIFO is half full.
DMA request when FIFO is one-fourth full.
Normal receiver operation.
Place receiver in Monitor mode. Receiver operates normally, but does not buffer
frames to memory.
Receive frames less than 64 bytes in length discarded.
Receive frames as short as 8 bytes accepted.
Receive frames with errors discarded. Reclaim buffer space.
Receive frames with errors accepted. Do not reclaim buffer space.
Receive frames with broadcast address ignored.
Receive frames with broadcast address accepted
Receive frames with multicast addresses ignored.
Receive frames with multicast addresses accepted if passing hashing filter.
Receive frames with mismatched physical addresses are ignored.
Receive frames with any physical address accepted. Promiscuous mode.
(NARCR)
(NATCR)
Description
Description
Rabbit 4000 Microprocessor User’s Manual
(Address = 0x020A)
(Address = 0x020B)