參數(shù)資料
型號: ISP1362
廠商: NXP Semiconductors N.V.
英文描述: Single-chip Universal Serial Bus On-The-Go controller
中文描述: 單芯片通用串行總線和On - The - Go控制器
文件頁數(shù): 16/150頁
文件大?。?/td> 647K
代理商: ISP1362
Philips Semiconductors
ISP1362
Single-chip USB OTG controller
Product data
Rev. 03
06 January 2004
16 of 150
9397 750 12337
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
The INTL and ATL buffers use
blocked memory management
scheme to enhance
the status and control capability of each and every individual PTD structure. The INTL
and ATL buffers are further divided into blocks of equal sizes depending on the value
written to the HcATLBlkSize register (ATL) and the HcINTLBlkSize register (INTL).
The ISP1362 HC supports up to 32 blocks in the ATL and INTL buffers. Each of these
blocks can be used for one complete Philips Transfer Descriptor (PTD) data.
Note that the block size does not include the 8-byte PTD header and is strictly the
size of the payload. Both the ATL and INTL block sizes must be a multiple of DWord
(4 bytes).
Fig 4.
Recommended values of the ISP1362 buffer memory allocation.
004aaa053
ISTL0 area (512 bytes)
ISTL1 area (512 bytes)
0x0FFF
INTL area (512 bytes)
ATL area (1536 bytes)
0x0A00
0x09FF
0x0800
0x07FF
0x0400
0x03FF
0x0000
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