SAF1562HL/N2-T NXP Semiconductors, SAF1562HL/N2-T Datasheet - Page 108

• Manufacturer Part Number: SAF1562HL/N2-T
• Description: DC/DC Switching Controllers CONNECTIVITY CHIP
• Manufacturer: NXP Semiconductors

Specifications of SAF1562HL/N2-T

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Mounting Style: SMD/SMT
• Package / Case: LQFP
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
SAF1562
Product data sheet
19.24.1 Problem description
19.24.2 Implication
19.24.3 Workaround
19.25 Erratum 25
In
work properly.
Normally in Windows environment, interoperability testing is done with a gold tree setup.
It is observed that the SAF1562 cannot properly perform an isochronous transfer through
a web camera (e.g. Logitech QuickCam Ultravision) and simultaneously an interrupt
transfer through a mouse (e.g. Microsoft basic optical mouse or Dell mouse) connected to
the high-speed hub. Sometimes the mouse cannot move freely and the left click does not
work properly.
The implication is moderate for non-embedded application.
For embedded system applications, the supported devices and the test setup are defined
by the product manufacturer. The supported devices are defined in the Targeted
Peripheral List (TPL) while the test setup is defined in the user guide. Therefore, the issue
is not critical.
The SAF1562 OHCI or EHCI bus master cannot be disabled if either OHCI bit BM or
EHCI bit BM is still set to logic 1.
Fig 18. Gold tree setup
Figure
18, the mouse and video camera which are connected to the Hub HS5 do not
Intel EHCI/UHCI
motherboard
PCI adapter
EHCI/OHCI
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 24 November 2010
MOUSE
OHCI
UHCI
EHCI
Hub HS1
Hub HS2
Hub HS3
Hub HS4
Hub HS5
VIDEO CAMERA
Hi-Speed Universal Serial Bus PCI Host Controller
MASS STORAGE 1
HUB FS1/KEYPAD
BUS-POWERED
MASS STORAGE 2
DUT
Hub FS2
SAF1562
© NXP B.V. 2010. All rights reserved.
001aam566
108 of 121