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CS4210 датащи(PDF) 25 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали CS4210
подробное описание детали  IEEE 1394 OHCI Controller
PDF  102 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
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CS4210 датащи(HTML) 25 Page - National Semiconductor (TI)

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Operational Description (Continued)
3.5.4
Retries
For asynchronous receive, the CS4210 supports dual-
phase retry for packets that must be busied. For asynchro-
nous transmit, CS4210 supports the single-phase retry
protocol. The retry mechanism is managed by hardware
and invisible to software.
3.5.5
DMA Summary
Table 3-9 is a summary of DMA information for reference
purposes.
Table 3-9. DMA Summary
DMA
Contexts
Per Context
Registers
Per Context
Interrupts
Receive
Mode
DMA Commands
Z
tcodes
Asynchronous
Transmit
1
Request
ContextControl
CommandPtr
reqTxComplete
OUTPUT_MORE
OUTPUT_MORE-Immediate
OUTPUT_LAST
OUTPUT_LAST-Immediate
2-8
0,1,4,
5, 9, A,
E
1
Response
ContextControl
CommandPtr
respTxComplete
2, 6, 7,
B
Asynchronous
Receive
1
Request
ContextControl
CommandPtr
ARRQ RQPkt
Buffer-fill
INPUT_MORE
1
0, 1, 4,
5, 9, E*
1
Response
ContextControl
CommandPtr
ARRS RSPkt
2, 6, 7,
B
Isochronous
Transmit
8
ContextControl
CommandPtr
IsochTx
IsochTxIntEventn
IsochTxIntMaskn
OUTPUT_MORE
OUTPUT_MORE-Immediate
OUTPUT_LAST
OUTPUT_LAST-Immediate
STORE_VALUE
1-8
A
Isochronous
Receive
8
ContextControl
CommandPtr
ContextMatch
IsochRx
IsochRxIntEventn
IsochRxIntMaskn
Packet-per-
buffer
INPUT_MORE INPUT_LAST
1-8
A
Buffer-fill
INPUT_MORE
1
Self-ID
1
SelfIDBuffer
SelfIDCount
SelfIDComplete
Buffer-fill
N/A



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