isp1160 NXP Semiconductors, isp1160 Datasheet - Page 80

• Manufacturer Part Number: isp1160
• Description: Isp1160 Embedded Universal Serial Bus Host Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 13963
Product data
18.3 Typical software model
Remark: SH7709’s system clock input is for reference only. Refer to SH7709’s
specification for its actual use.
The ISP1160 can work under either 3.3 V or 5.0 V power supply; however, its internal
core 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 (V
V
Section
ISP1160 the flexibility 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
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
API for Class driver and device driver, both of which provide API for application tasks
for host function.
•
•
•
•
REG(3V3)
There is a DMA channel standard control line: DREQ and DACK_N. The DREQ
signal has programmable active levels.
An interrupt line INT is used by the HC. It has programmable level/edge and
polarity (active HIGH or LOW).
The internal 15 k pull-down resistors are used for the HC’s two USB downstream
ports.
The RESET_N signal is active LOW.
11). All of the ISP1160’s I/O pins are 5 V-tolerant. This feature allows the
, V
HOLD1
Rev. 05 — 24 December 2004
and V
HOLD2
) to the 3.3 V power supply (for more information, see
Figure
Figure
Embedded USB Host Controller
40.
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
41). The host stack provides
ISP1160
CC
80 of 88
,