ISP1161ABM ST-Ericsson Inc, ISP1161ABM Datasheet - Page 25

• Manufacturer Part Number: ISP1161ABM
• Description: IC USB HOST/DEVICE CTRLR 64-LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1161ABM

• Controller Type: USB 2.0 Controller
• Interface: Parallel
• Voltage - Supply: 3.3V, 5V
• Current - Supply: 47mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-3150

Philips Semiconductors
9. USB host controller (HC)
9397 750 13962
Product data
Fig 23. ISP1161A HC USB states.
USBOperational write
9.1 HC’s four USB states
9.2 Generating USB traffic
USBSuspend write
The ISP1161A USB HC has four USB states − USBOperational, USBReset,
USBSuspend, and USBResume − that define the HC’s USB signaling and bus states
responsibilities.
The USB states are reflected in the HostControllerFunctionalState field of the
HcControl register (01H - read, 81H - write), which is located at bits 7 and 6 of the
register.
The Host Controller Driver (HCD) can perform only the USB state transitions shown
in
Remark: The Software Reset in
command. It is caused by the HostControllerReset field of the HcCommandStatus
register (02H - read, 82H - write).
USB traffic can be generated only when the ISP1161A USB HC is in the
USBOperational state. Therefore, the HCD must set the
HostControllerFunctionalState field of the HcControl register before generating USB
traffic.
A simplistic flow diagram showing when and how to generate USB traffic is shown in
Figure
protocol and ISP1161A USB HC register usage.
Figure
USBOperational
USBSuspend
24. For more detail, refer to the USB Specification Revision 2.0 about the
23.
Rev. 03 — 23 December 2004
USBResume write
remote wake-up
Full-speed USB single-chip host and device controller
USBResume
or
USBOperational write
Figure 23
is not caused by the HcSoftwareReset
USBReset write
USBReset write
USBReset write
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
hardware or software
USBReset
reset
ISP1161A
MGT947
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