參數(shù)資料
型號(hào): MD8412B
廠商: Electronic Theatre Controls, Inc.
英文描述: LINK(IEEE 1394)
中文描述: 鏈接(1394)
文件頁數(shù): 27/114頁
文件大?。?/td> 577K
代理商: MD8412B
MD8412B
Ver 1.10
FUJIFUILM MICRODEVICES CO., LTD.
15
3-2-7
Packet Control Register
Index
18h
Initial value
0000 1020h
Bit 1
EnAcc
: Ack Acceleration On bit (RW- Initial value: 0b)
= Transmission of an asynchronous packet by AckAcceleration is disabled.
= Transmission of an asynchronous packet by AckAcceleration is enabled.
Setting is made to determine whether the transmission of an asynchronous packet by AckAcceleration is
enabled or not.
IsoMode becomes effective only when
"
000b
"
,
"
001b
"
,
"
011b
"
,
"
101b
"
are set up.
0
1
Bit 2
Multi
: Multi Speed Concatination On bit (RW- Initial value: 0b)
= Multi-speed concatenation transmission of isochronous packet is disabled.
= Multi-speed concatenation transmission of isochronous packet is enabled.
Setting is made to determine whether the multi-speed concatenation transmission of isochronous packet is
enabled or not.
Transmission of multi-speed concatenation is valid at the time of IsoMode transmission in normal mode. In
the auto-mode transmission, no function of multi-speed concatenation is supported.
Even when the reversal data for a PHY control packet are different, this PHY control packet is not stored in
the ARF buffer.
0
1
Bit 4
EnSnoop
: Enable Snoop bit (RW- Initial value: 0b)
= Normally, only the packet mapped in this node address is received.
= Snoop mode assumed.
Regardless of the node address assumed, a snoop mode is set up so that all packets carried on the serial bus,
can be received. When a packet is received, the Ack code is not returned. All packets received in this mode are
stored in the IRF buffer.
0
1
Bit 5
RxSelfID
: Receive Self ID bit (RW- Initial value: 1b)
= No SelfID packet is inserted in the buffer.
= SelfID packet is input in the buffer.
This bit makes setting to decide whether the SelfID packet received in the Self ID phase after bus reset
should be put in the buffer area for reception Async.
0
1
7
6
5
4
3
2
1
0
RxPhyPkt
RxSelfID
EnSnoop
Multi
EnAcc
15
14
13
12
11
10
9
8
WritePending
BusyCtrl
23
22
21
20
19
18
17
16
31
30
29
28
27
26
25
24
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