參數(shù)資料
型號： 935270538118
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁數(shù)： 80/93頁
文件大小： 2118K
代理商： 935270538118
Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 03 — 27 February 2003
81 of 89
9397 750 10765
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
The CS line is used for chip selection of the ISP1160 in a certain address range of
the RISC system. This signal is active LOW.
RD and WR are common read and write signals. These signals are active LOW.
There is a DMA channel standard control line:
– DREQ and DACK
(the channel is used by the host controller). The DREQ signal has programmable
active levels.
An interrupt line INT is used by the host controller. It has programmable level/edge
and polarity (active HIGH or LOW).
The internal 15 k
pull-down resistors are used for the HCs two USB downstream
ports.
The RESET signal is active LOW.
Remark: SH7709’s system clock input is for reference only. Please refer to SH7709’s
specication for its actual use.
The ISP1160 can work under either 3.3 V or 5.0 V power supply; however, its internal
core actually works at 3.3 V. When using 3.3 V as the power supply input, the internal
DC/DC regulator will be bypassed. It is best to connect all four power supply pins
(VCC,Vreg(3.3),Vhold1 and Vhold2) to the 3.3 V power supply (for more information, see
Section 11). All of the ISP1160’s I/O pins are 5 V-tolerant. This feature allows the
ISP1160 the exibility to be used in an embedded system under either a 3.3 V or a
5 V power supply.
A typical SH7709 interface circuit is shown in Figure 38.
17.3 Typical software model
This section shows a typical software requirement for an embedded system that
incorporates the ISP1160. The software model for a Digital Still Camera (DSC) is
used as the example for illustration (as shown in Figure 39). The host stack provides
API for Class driver and device driver, both of which provide API for application tasks
for host function.
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