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Rabbit 6000 User’s Manual
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278
DMA y Control Register
(D0CR)
(Address = 0x0181)
(D1CR)
(Address = 0x0191)
(D2CR)
(Address = 0x01A1)
(D3CR)
(Address = 0x01B1)
(D4CR)
(Address = 0x01C1)
(D5CR)
(Address = 0x01D1)
(D6CR)
(Address = 0x01E1)
(D7CR)
(Address = 0x01F1)
(D8CR)
(Address = 0x0981)
(D9CR)
(Address = 0x0991)
(D10CR)
(Address = 0x09A1)
(D11CR)
(Address = 0x09B1)
(D12CR)
(Address = 0x09C1)
(D13CR)
(Address = 0x09D1)
(D14CR)
(Address = 0x09E1)
(D15CR)
(Address = 0x09F1)
Bit(s)
Value
Description
7
0
Continue to next buffer descriptor.
1
Final buffer descriptor. Stop DMA operation upon completion of this
transfer.
6
0
Use sequential address for next buffer descriptor. The link address field is
not present in this buffer descriptor, which is now 12 bytes long.
1
Use the link address field as a pointer to the next buffer descriptor. This
buffer descriptor is 16 bytes long.
5
0
No special treatment for last byte.
1
Internal Source: status byte written to initial buffer descriptor before last
data.
Internal Destination: Last byte written to offset address for frame
termination.
All others: No effect.
4
0
No interrupt on completing this transfer.
1
Interrupt on completing this transfer.
3:2
00
Source address is fixed internal I/O (two-byte) address.
01
Source address is fixed external I/O (two-byte) address.
10
Source address is memory (three-byte) address, auto-decrement.
11
Source address is memory (three-byte) address, auto-increment.
1:0
00
Destination address is fixed internal I/O (two-byte) address.
01
Destination address is fixed external I/O (two-byte) address.
10
Destination address is memory (three-byte) address, auto-decrement.
11
Destination address is memory (three-byte) address, auto-increment.
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 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...
Page 323: ...Rabbit 6000 User s Manual digi com 323 28 1 1 Block Diagram...
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...
Page 390: ...Rabbit 6000 User s Manual digi com 390 35 1 1 Block Diagram...
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Page 420: ...Rabbit 6000 User s Manual digi com 420 Figure 37 1 Memory Read and Write Cycles...