CY7C632XX Datasheet, PDF (1/3 Pages) Cypress Semiconductor – Low-speed USB Peripheral Controller

CY7C632xx
Errata Revision: **
April 7, 2004
Errata Document for CY7C632xx / enCoRe™ USB Low-speed USB Peripheral Controller
This document describes the errata for the enCoRe™ USB Low-speed USB Periheral Controller / CY7C632xx.
Details include errata trigger conditions, available workarounds, and silicon revision applicability. This document
should be used to compare to the datasheet for this device to fully describe the device functionality.
Please contact your local Cypress Sales Representative if you have further questions.
Part Numbers Affected
Part Number
CY7C63221
CY7C63231A
Device Characteristics
All packages
All packages
enCoRe™ USB Low-speed USB Peripheral Controller Qualification Status
Product status: In Production - Qual report: 001406
enCoRe™ USB Low-speed USB Peripheral Controller Errata Summary
The following table defines the errata applicability to available enCoRe™ USB Low-speed USB Peripheral Controller
family devices. An "X" indicates that the errata pertains to the selected device.
Note: Errata titles are hyperlinked. Click on table entry to jump to description.
Items
1. Faulty GPIO Interrupt
CY7C632xx
X
Rev Letter
A
Fix Status
No silicon fix planned.
1. Faulty GPIO Interrupt
• PROBLEM DEFINITION
When a falling edge interrupt is enabled for a GPIO pin, reading the GPIO Port 1 coincident to a rising edge
of that GPIO signal may generate a false GPIO interrupt.
Any Port 0 or Port 1 GPIO
pin with Falling Edge GPIO
Interrupt Enabled
Port 1 Read Signal
(See Note 1)
GPIO Interrupt Signal
(See Note 2)
Proper GPIO
Interrupt Trigger
False GPIO interrupt
on a Rising edge
Cypress Semiconductor Corporation • 3901 North First Street • San Jose • CA 95134 • 408-943-2600
April 2004