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參數(shù)資料
| 型號： | TSB12LV32-EP |
| 英文描述： | IC APEX 20KE FPGA 100K 324-FBGA |
| 中文描述： | 軍事增強塑料電機及電子學工程師聯(lián)合會1394-1995和P1394a兼容通用鏈路層控制器 |
| 文件頁數(shù)： | 79/106頁 |
| 文件大?。?/td> | 605K |
| 代理商： | TSB12LV32-EP |
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7
–
1
7 TSB12LV32 Data Formats
The data formats for transmission and reception of data are shown in the following sections. The transmit
format describes the expected organization of data presented to the TSB12LV32 at the host-bus interface.
The receive formats describe the data format that the TSB12LV32 presents to the host-bus interface.
7.1
Asynchronous transmit refers to the use of the asynchronous-transmit FIFO (ATF) interface. The
general-receive FIFO (GRF) is shared by asynchronous data and isochronous data. There are two basic
formats for data to be transmitted and received. The first is for quadlet packets, and the second is for block
packets. For transmits, the FIFO address indicates the beginning, middle, and end of a packet. For receives,
the data length, which is found in the header of the packet, determines the number of bytes in a block packet.
Asynchronous Transmit (Host Bus to TSB12LV32)
7.1.1
The quadlet-transmit format is shown in Figure 7
–
1 and 7
–
2, are described in Table 7
–
1. The first quadlet
contains packet control information. The second and third quadlets contain the 64-bit, quadlet-aligned
address. The fourth quadlet is data used only for write requests and read responses. For read requests and
write responses, the quadlet data field is omitted.
Quadlet Transmit
3
2
1
0
7
6
5
4
11
10
9
8
15
14
13
12
19
18
17
16
20 21
31
30
29
28
27
26
25
24
23
22
prioity
tCode
rt
tLabel
spd
desinationOffsetHigh
destinationID
desinationOffsetLow
quadlet data
Figure 7
–
1. Quadlet-Transmit Format (Write Request)
3
2
1
0
7
6
5
4
11
10
9
8
15
14
13
12
19
18
17
16
20 21
31
30
29
28
27
26
25
24
23
22
prioity
tCode
rt
tLabel
spd
rCode
destinationID
quadlet data
Figure 7
–
2. Quadlet-Transmit Format (Read Response)
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TSB12LV32I | 制造商:TI 制造商全稱:Texas Instruments 功能描述:IEEE 1394-1995 and P1394a Compliant General-Purpose Link-Layer Controller |
| TSB12LV32IPZ | 功能描述:1394 接口集成電路 General-Purpose Link Layer Cntrlr RoHS:否 制造商:Texas Instruments 類型:Link Layer Controller 工作電源電壓: 封裝 / 箱體:LQFP 封裝:Tray |
| TSB12LV32IPZEP | 制造商:Texas Instruments 功能描述:1394 I-TEMP 1394 GENERAL-PURPOSE LINK LAYER CONTROLLER (GP2L - Rail/Tube |
| TSB12LV32IPZG4 | 功能描述:1394 接口集成電路 General Purpose Link Layer Cntrlr RoHS:否 制造商:Texas Instruments 類型:Link Layer Controller 工作電源電壓: 封裝 / 箱體:LQFP 封裝:Tray |
| TSB12LV32PZ | 功能描述:1394 接口集成電路 General-Purpose Link Layer Cntrlr RoHS:否 制造商:Texas Instruments 類型:Link Layer Controller 工作電源電壓: 封裝 / 箱體:LQFP 封裝:Tray |
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