參數(shù)資料
型號(hào): TSB42AA9I
廠商: Texas Instruments, Inc.
英文描述: STORAGELYNX 1394 LINK-LAYER CONTROLLER FOR ATA/ATAPI STORAGE PRODUCTS
中文描述: STORAGELYNX 1394鏈路層的ATA控制器/ ATAPI儲(chǔ)存產(chǎn)品
文件頁(yè)數(shù): 91/183頁(yè)
文件大?。?/td> 798K
代理商: TSB42AA9I
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526
Table 523. PHY Configuration Packet Functions
FIELD NAME
00
ROOT_ID
DESCRIPTION
The 00 field is the PHY configuration packet identifier.
The ROOT_ID field is the physical_ID of the node to have its force_root bit set (only meaningful when
R is set).
When R is set, the force-root bit of the node identified in root_ID is set and the force_root bit of all other
nodes are cleared. When R is cleared, root_ID is ignored.
When T is set, the PHY_Configuration.gap_cnt field of all the nodes is set to the value in the gap_cnt
field.
The GAP_CNT field contains the new value for PHY_CONFIGURATION.gap_count for all nodes.
This value goes into effect immediately upon receipt and remains valid after the next bus reset. After
the second reset, GAP_CNT is set to 0x63 unless a new PHY configuration packet is received.
A PHY configuration packet with R = 0 and T = 0 is reserved and is ignored when received.
5.7
Extended PHY Packets
R
T
GAP_CNT
5.7.1
Remote Access Packet
ceLynx can transmit a remote access packet to read a remote node’s PHY registers. Figure 528 shows
the format for this type of packet.
0
PHY_ID
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
31
Logical inverse of first quadlet
RSVD
PORT
TYPE
PAGE
REG
0
0
0
1 1 1 0
Figure 526. Remote Access Packet Format
Table 524. Remote Access Packet Functions
FIELD NAME
DESCRIPTION
00
The 00 field is the PHY packet identifier.
PHY_ID
Physical node identifier of the destination of this packet
TYPE
Extended PHY packet type:
1 Register read (base registers)
5 Register read (paged registers)
PAGE
This field corresponds to the
Page_Select
field in the PHY registers. The register read behaves as if
the
Page_select
was set to this value.
PORT
This field corresponds to the
Port_select
field in the PHY registers. The register read behaves as if
Port_select
was set to this value.
REG
This field, in combination with page and port, specifies the PHY register. If type indicates a read
request of the base PHY registers, the read directly addresses one of the first eight PHY registers.
Otherwise, the PHY register address is 1000b + REG.
RSVD
Reserved
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TSB42AA9IPZT STORAGELYNX 1394 LINK-LAYER CONTROLLER FOR ATA/ATAPI STORAGE PRODUCTS
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TSB42AA9PZTR 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel
TSB42AB4 制造商:TI 制造商全稱:Texas Instruments 功能描述:IEEE 1394 A CONSUMER ELECTRONICS LINK LAYER CONTROLLER
TSB42AB4I 制造商:TI 制造商全稱:Texas Instruments 功能描述:IEEE 1394 A CONSUMER ELECTRONICS LINK LAYER CONTROLLER