參數(shù)資料
型號: ISP1362EE,551
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PBGA64
封裝: 6 X 6 MM, 0.80 HEIGHT, PLASTIC, MO-195, SOT-543-1, TFBGA-64
文件頁數(shù): 57/152頁
文件大?。?/td> 677K
代理商: ISP1362EE,551
ISP1362_5
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 05 — 8 May 2007
15 of 152
NXP Semiconductors
ISP1362
Single-chip USB OTG Controller
The INTL and ATL buffers use ‘blocked memory management’ scheme to enhance the
status and control capability of each and every individual Philips Transfer Descriptor
(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 Host Controller supports up to 32 blocks in the ATL and
INTL buffers. Each of these blocks can be used for one complete PTD data.
Note that the block size does not include the 8 bytes PTD header and is strictly the size of
the payload. Both the ATL and INTL block sizes must be a multiple of double word
(4 bytes).
Fig 4.
Recommended values of the ISP1362 buffer memory allocation
004aaa053
ISTL0 area (512 bytes)
ISTL1 area (512 bytes)
0FFFh
INTL area (512 bytes)
ATL area (1536 bytes)
0A00h
09FFh
0800h
07FFh
0400h
03FFh
0000h
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