參數(shù)資料
型號: ISP1161ABM
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Full-speed Universal Serial Bus single-chip host and device controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝: 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-414-1, LQFP-64
文件頁數(shù): 76/134頁
文件大小: 587K
代理商: ISP1161ABM
Philips Semiconductors
ISP1161A
Full-speed USB single-chip host and device controller
Product data
Rev. 03 — 23 December 2004
76 of 134
9397 750 13962
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
The HCD must set the byte count into the HcTransferCounter register and check the
HcBufferStatus register before reading from or writing to the buffer. The HCD must
write the command (41H for read, C1H for write) once only, and then read or write
both bytes of the data word. After every read/write, the pointer of ATL buffer RAM will
be automatically increased by two to point to the next data word until it reaches the
value of HcTransferCounter register; otherwise, an internal EOT signal is not
generated to set the bit 2 (AllEOTInterrupt) of the Hc
μ
PInterrupt register and update
the HcBufferStatus register.
The HCD must take care of the difference: the internal buffer RAM is organized in
bytes, so the HCD must write the byte count into the HcTransferCounter register, but
the HCD reads or writes the buffer RAM by 16 bits (by 1 data word).
Bit
Symbol
Reset
Access
7
6
5
4
DataWord[7:0]
0
R/W
3
2
1
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 65:
Bit
15 to 0
HcATLBufferPort register: bit description
Symbol
DataWord[15:0]
Description
read/write ATL buffer RAM’s two data bytes.
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