![background image](http://html2.mh-extra.com/html/rabbit/6000/6000_user-manual_3115352266.webp)
Rabbit 6000 User’s Manual
digi.com
266
DMA y Buffer Complete Register
(D0BCR)
(Address = 0x0103)
(D1BCR)
(Address = 0x0113)
(D2BCR)
(Address = 0x0123)
(D3BCR)
(Address = 0x0133)
(D4BCR)
(Address = 0x0143)
(D5BCR)
(Address = 0x0153)
(D6BCR)
(Address = 0x0163)
(D7BCR)
(Address = 0x0173)
(D8BCR)
(Address = 0x0903)
(D9BCR)
(Address = 0x0913)
(D10BCR)
(Address = 0x0923)
(D11BCR)
(Address = 0x0933)
(D12BCR)
(Address = 0x0943)
(D13BCR)
(Address = 0x0953)
(D14BCR)
(Address = 0x0963)
(D15BCR)
(Address = 0x0973)
Bit(s)
Value
Description
7:0
Read
The DMA increments a counter at the start of each buffer. This count is
latched in this register and can be used, along with the
buffer unused
count, to determine the actual amount of data transferred by the DMA.
This counter is initialized by a start command or when the DMA is
automatically rewound to the initial address.
Write
Writing to this register loads the counter. This feature is intended only for
testing, because the DMA automatically resets the counter to all ones
when fetching from the initial address. The counter is incremented
whenever the DMA fetches a new buffer length value from a descriptor.
DMA Master Control Register
(DMCR)
(Address = 0x0104)
Bit(s)
Value
Description
7:4
These bits are reserved and should be written with zeros.
3:2
00
DMA transfers at Priority 0. No DMA transfers while CPU operates at
Priority 3, 2, or 1.
01
DMA transfers at Priority 1. No DMA transfers while CPU operates at
Priority 3 or 2.
10
DMA transfers at Priority 2. No DMA transfers while CPU operates at
Priority 3.
11
DMA transfers at Priority 3. DMA transfers at any time.
1:0
00
DMA interrupts are disabled.
01
DMA interrupts use Interrupt Priority 1.
10
DMA interrupts use Interrupt Priority 2.
11
DMA interrupts use Interrupt Priority 3.
Содержание 6000
Страница 1: ...Rabbit 6000 Microprocessor User s Manual 90001108_J...
Страница 11: ...Rabbit 6000 User s Manual digi com 11 1 3 Block Diagram Figure 1 1 Rabbit 6000 Block Diagram...
Страница 43: ...Rabbit 6000 User s Manual digi com 43 4 1 1 Block Diagram...
Страница 57: ...Rabbit 6000 User s Manual digi com 57 5 1 1 Block Diagram...
Страница 88: ...Rabbit 6000 User s Manual digi com 88 7 2 Block Diagram...
Страница 115: ...Rabbit 6000 User s Manual digi com 115 11 1 1 Block Diagram...
Страница 127: ...Rabbit 6000 User s Manual digi com 127 12 1 1 Block Diagram...
Страница 138: ...Rabbit 6000 User s Manual digi com 138 13 1 1 Block Diagram...
Страница 154: ...Rabbit 6000 User s Manual digi com 154 15 1 1 Block Diagram...
Страница 163: ...Rabbit 6000 User s Manual digi com 163 16 1 1 Block Diagram...
Страница 170: ...Rabbit 6000 User s Manual digi com 170 17 1 1 Block Diagram...
Страница 177: ...Rabbit 6000 User s Manual digi com 177 18 1 1 Block Diagram...
Страница 186: ...Rabbit 6000 User s Manual digi com 186 19 1 1 Block Diagram...
Страница 230: ...Rabbit 6000 User s Manual digi com 230 22 2 Block Diagram...
Страница 234: ...Rabbit 6000 User s Manual digi com 234 Figure 22 3 Sample Slow A D Converter Circuit...
Страница 287: ...Rabbit 6000 User s Manual digi com 287 25 1 1 Block Diagram...
Страница 310: ...Rabbit 6000 User s Manual digi com 310 26 1 1 Block Diagram...
Страница 323: ...Rabbit 6000 User s Manual digi com 323 28 1 1 Block Diagram...
Страница 351: ...Rabbit 6000 User s Manual digi com 351 31 1 4 Block Diagram...
Страница 361: ...Rabbit 6000 User s Manual digi com 361 32 1 1 Block Diagram...
Страница 369: ...Rabbit 6000 User s Manual digi com 369 33 2 Block Diagram...
Страница 390: ...Rabbit 6000 User s Manual digi com 390 35 1 1 Block Diagram...
Страница 408: ...Rabbit 6000 User s Manual digi com 408...
Страница 410: ...Rabbit 6000 User s Manual digi com 410...
Страница 411: ...Rabbit 6000 User s Manual digi com 411...
Страница 420: ...Rabbit 6000 User s Manual digi com 420 Figure 37 1 Memory Read and Write Cycles...