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Rabbit 6000 User’s Manual
digi.com
298
Network Port B Transmit Control Register
(NBTCR)
(Address = 0x020A)
Bit(s)
Value
Description
7:6
00
Disable transmit FIFO.
01
DMA request when frame transmission is complete.
10
Reserved.
11
Reserved.
5:4
00
Start transmit on command only.
01
Start transmit on command or Last Byte written.
10
Start transmit on command, when FIFO is half full, or Last Byte written.
11
Start transmit on command, when FIFO is one-fourth full, or Last Byte written.
3:0
These bits are reserved and should be written with zeros.
Network Port B Receive Control Register
(NBRCR)
(Address = 0x020B)
Bit(s)
Value
Description
7:6
00
Disable receive FIFO.
01
DMA request when frame reception is complete.
10
DMA request when FIFO is half full or frame reception is complete.
11
DMA request when FIFO is one-fourth full or frame reception is complete.
5
0
Normal receiver operation.
1
Place receiver in Monitor Mode. Receiver operates normally, but does not
buffer frames to memory.
4
0
Receive frames less than 64 bytes in length discarded.
1
Receive frames as short as 8 bytes accepted.
3
0
Receive frames with errors discarded. Reclaim buffer space.
1
Receive frames with errors accepted. Do not reclaim buffer space.
2
0
Receive frames with broadcast address ignored.
1
Receive frames with broadcast address accepted
1
0
Receive frames with multicast addresses ignored.
1
Receive frames with multicast addresses accepted if passing hashing filter.
0
0
Receive frames with mismatched physical addresses are ignored.
1
Receive frames with any physical address accepted. Promiscuous mode.
Summary of Contents for 6000
Page 1: ...Rabbit 6000 Microprocessor User s Manual 90001108_J...
Page 11: ...Rabbit 6000 User s Manual digi com 11 1 3 Block Diagram Figure 1 1 Rabbit 6000 Block Diagram...
Page 43: ...Rabbit 6000 User s Manual digi com 43 4 1 1 Block Diagram...
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Page 115: ...Rabbit 6000 User s Manual digi com 115 11 1 1 Block Diagram...
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Page 186: ...Rabbit 6000 User s Manual digi com 186 19 1 1 Block Diagram...
Page 230: ...Rabbit 6000 User s Manual digi com 230 22 2 Block Diagram...
Page 234: ...Rabbit 6000 User s Manual digi com 234 Figure 22 3 Sample Slow A D Converter Circuit...
Page 287: ...Rabbit 6000 User s Manual digi com 287 25 1 1 Block Diagram...
Page 310: ...Rabbit 6000 User s Manual digi com 310 26 1 1 Block Diagram...
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Page 351: ...Rabbit 6000 User s Manual digi com 351 31 1 4 Block Diagram...
Page 361: ...Rabbit 6000 User s Manual digi com 361 32 1 1 Block Diagram...
Page 369: ...Rabbit 6000 User s Manual digi com 369 33 2 Block Diagram...
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Page 420: ...Rabbit 6000 User s Manual digi com 420 Figure 37 1 Memory Read and Write Cycles...