ISP1561BMUM ST-Ericsson Inc, ISP1561BMUM Datasheet - Page 33

• Manufacturer Part Number: ISP1561BMUM
• Description: IC USB HOST CTRL HI-SPD 128LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1561BMUM

• Controller Type: USB Peripheral Controller
• Interface: PCI
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: ISP1561BM-T; ISP1561BM-T

NXP Semiconductors
11. USB Host Controller registers
ISP1561_2
Product data sheet
10.2 USB bus states
Reset state — When the USB bus is in the reset state, the USB system is stopped.
Operational state — When the USB bus is in the active state, the USB system is
operating normally.
Suspend state — When the USB bus is in the suspend state, the USB system is
stopped.
Resume state — When the USB bus is in the resume state, the USB system is operating
normally.
Each Host Controller contains a set of on-chip operational registers that are mapped into
uncached memory of the system addressable space. This memory space must begin on a
DWORD (32-bit) boundary. The size of the allocated space is defined by the initial value in
the BAR0 register. HCDs must interact with these registers to implement USB and legacy
support functionality.
After the PCI enumeration driver finishes the PCI device configuration, the new base
address of these memory-mapped operational registers is defined in BAR0. The HCD can
access these registers by using the address of base address value + offset.
contains a list of Host Controller registers.
Rev. 02 — 5 March 2007
HS USB PCI Host Controller
© NXP B.V. 2007. All rights reserved.
ISP1561
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