ATJ2085 ETC, ATJ2085 Datasheet - Page 21

• Manufacturer Part Number: ATJ2085
• Description: Atj2085 is a Single-chip for Flash-based Digital Music Player
• Manufacturer: ETC

ATJ2085
4.15.1 Hard Core
4.15.2 Interrupts
4.16 FM Interface
5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Copyright © 2004 Actions Semiconductor Co., Ltd. All rights reserved.
VER 1.5
These two endpoints employ two independent FIFO for bulk or isochronous transfers. Endpoint 0
and endpoint 3 have 8 bytes maximum packet size. There are 4 interrupt requests for each
endpoint respectively. Generally, this setting should be satisfying for most practical needs.
The USB block includes a USB function with one upstream port. The USB port interfaces to the
micro-controller through a programmable-speed serial interface engine (SIE). The SIE allows the
micro-controller to communicate with the USB host.
Two groups of interrupt requests are used to notify the micro-controller that there is some USB
event pending to be handled. One is Global Interrupt group, and the other is Endpoint Interrupt
group. Whenever an interrupt is generated, the SIE will send a low pulse to the micro-controller.
The IRQ will not be invalidated until all the pending interrupts are cleared.
ATJ2085 can be used as a controller with Philips FM5767 module. 2-wire or 3-wire also can be
used to control the module.
Note:
1. TO = 25
2. Do not short-circuit two or more output pins simultaneously.
3. If even one of the above parameters exceeds the absolute maximum ratings even momentarily,
Supply voltage
the quality of the product may be degraded. The absolute maximum ratings, therefore, specify
Input voltage
temperature
Parameter
Storage
℃ Operating Temperature)
(
Symbol
T
WWW.MP3JS.COM.CN
VDD
VCC
Vi
stg
VCC >= 3.3
Page 20
VCC < 3.3
DATA SHEET
Typical
2.0V
3.0V
-0.5 to VCC+0.6
-0.5 to +2.7
-0.5 to +3.6
-0.5 to +3.9
-65 to +150
Rating
8/18/2004
Actions
Unit
℃
V
V
V
V