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參數(shù)資料
| 型號： | TSB43AA82A1 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1394 integrated PHY and link layer controller(1394集成PHY和鏈路層控制器) |
| 中文描述： | 1394綜合物理層和鏈路層控制器（1394集成物理層和鏈路層控制器） |
| 文件頁數(shù)： | 80/146頁 |
| 文件大?。?/td> | 597K |
| 代理商： | TSB43AA82A1 |
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52
ConfigROM Size Set
Auto Response
ConfigROM Size Set
ROM Access Mode
(XLOG = 1)
LOG Access Mode
(XLOG = 0)
ROMValid
Data Write
(FCh)
Figure 52. ConfigROM Setup
Figure 5-2 shows a basic flow diagram for the host to set up the ConfigROM. The following steps provide additional
description for the figure:
1.
Once power is on, the host writes the number of bytes to be written in ConfigROM. The value between the
ConfigROM start address (FFFF F000 0400h) and the AR_ConfigROM_Size is subject for the ConfigROM
AutoResponse. If the content of the ConfigROM does not exceed 504 bytes (the maximum size for
AR_ConfigROM_Size), the host writes the value of AR_ConfigROM_Size to ConfigROM_Size. If the
ConfigROM content is more than 504 bytes, the host writes the total ConfigROM size into ConfigROM_Size.
(Note: ConfigROM_Size does not exceed 1024 Bytes). As stated previously, the host needs to respond to
requests for the ConfigROM larger than AR_ConfigROM_Size but less than the Config_ROM_Size.
2.
Next, the host loads the ConfigROM to TSB43AA82A through the Log/ROM control register (F8h) and Log
ROM data register (FCh). First, the XLOG bit is set to make LogData accessible to ROM and 400h is written
into the ROMAddr, which writes data for ConfigROM address FFFF F000 0400h into ROMAccess.
3.
Repeated writes to the Log ROM data register at FCh increment the address automatically and write the
ConfigROM data in order. To verify the data, the host writes the start address to ROMAddr, then reads
ROMAccess.
4.
Finally, the host clears the XLOG bit on the Log/ROM control register (F8h), and at the same time, sets
ROMValid(F8h) to indicate the ConfigROM is valid. If ROMValid is not set, the device responds with an
ack_tardy to a ConfigROM read request.
5.3
Transaction LOG
The host uses LOG to keep track of automatic transactions. To record the LOG, set the XLOG bit in the Log/ROM
control register (F8h) for a desired transaction to be stored in the LOG FIFO. See Section 3.4.48 for a detailed
description of each Enable bit and recorded log. The LOG may be read from the log data register at FCh. With
ShortLog format, the data section of a packet is omitted, and only the header and trailer are logged. LogAvail shows
the number of quadlets of currently recorded log. Once LOG FIFO is filled with logs, it overwrites older logs. Therefore,
if LogAvail is the same size as LOG FIFO, LOG FIFO is full and only newer logs can be viewed.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSB43AA82AI | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1394 Integrated PHY and Link-Layer Controller for SBP-2 Products and DPP Products |
| TSB43AA82AIPGE | 功能描述:1394 接口集成電路 Hi Perf Integr Phy & Link Layer Chip 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 |
| TSB43AA82AIPGEEP | 功能描述:1394 接口集成電路 Mil Enh Int PHY and 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 |
| TSB43AA82APGE | 功能描述:1394 接口集成電路 Hi Perf Integr Phy & Link Layer Chip 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 |
| TSB43AA82APGEG4 | 功能描述:1394 接口集成電路 Hi Perf Integr Phy & Link Layer Chip 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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