Acer Aspire 1450, Ferrary 3000 Schematics POWER SEQUENCE

VIA Technologies, Inc. Application Note AN228A 1045 Mission Court. 8th. Fl., No. 533 Fremont, CA 94539 Chung-cheng Rd.,Hsin-tien

USA Taipei, Taiwan, R.O.C

: 1-510-683-3300

TEL

__________________________________________________________________________

Title

: 1-510-683-3301

FAX

: 886-2-218-5452

TEL

: 886-2-218-5453

FAX

The power sequence of VT8235

Released Date

Disclaimer Notice:

May 23, 2003

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Revision History

Document

Release

AP228 07/09/2002 Initial release MJ

AP228A 05/23/2003 Update item4,5,11,12,13 and 14 of table1. MJ

Date Revision Initials

Power On Sequence with default OFF

RTC power llllrhhhhhhhhhhhhhhhhhhhhhhh Suspend power lllllllrhhhhhhhhhhhhhhhhhhhh RSMRST# lllllllllrhhhhhhhhhhhhhhhhhh Core power llllllllllllllllrhhhhhhhhhhh PWRGD lllllllllllllllllllrhhhhhhhh PWRBTN# hhhhhhhhhhflrhhhhhhhhhhhhhhh SUS[A-C]

llllllllllllllrhhhhhhhhhhhhh

Power On Sequence with default ON

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VIA Technologies, Inc. Application Note AN228A 1045 Mission Court. 8th. Fl., No. 533 Fremont, CA 94539 Chung-cheng Rd.,Hsin-tien

USA Taipei, Taiwan, R.O.C

: 1-510-683-3300

TEL

__________________________________________________________________________

: 1-510-683-3301

FAX

: 886-2-218-5452

TEL

: 886-2-218-5453

FAX

Power On Suspend sequence without RESET (S1)

Power hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh POS command zznozzzzzzzzzzzzzzzzzzzzzzzzzz Stop Grant zzzznozzzzzzzzzzzzzzzzzzzzzzzz Resume event zzzzzzzzzzzzzzzznozzzzzzzzzzzz STPCLK# hhhfllllllllllllllllllllrhhhhh SLP# hhhhhhfllllllllllllllllrhhhhhh SUSTAT# hhhhhhhfllllllllllllllrhhhhhhh CPUSTP# hhhhhhhhfllllllllllrhhhhhhhhhh PCISTP# hhhhhhhhfllllllllllrhhhhhhhhhh SUSA hhhhhhhhhfllllllllrhhhhhhhhhhh SUS[B-C] hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Power On Suspend sequence with CPU/PCI RESET

Power hhhhhhhhhhhhhhhhhhhhhhhhhhhh POS command zzznozzzzzzzzzzzzzzzzzzzzzzz Resume event zzzzzzzzzzzzzzzznozzzzzzzzzz STPCLK# hhhhhfllllllllllllrhhhhhhhhh SLP# hhhhhhflllllllllllrhhhhhhhhh SUSTAT# hhhhhhhhhhhhhhhhhhhhhhhhhhhh CPUSTP# hhhhhhhhfllllllllllrhhhhhhhh PCISTP# SUSA hhhhhhhhhfllllllllrhhhhhhhhh SUS[B-C] hhhhhhhhhhhhhhhhhhhhhhhhhhhh PCIRST# hhhhhhhhhhhhhhhhhhflllllllrh

hhhhhhhhfllllllllllrhhhhhhhh

Suspend to RAM sequence

PWRGD hhhhhhhhhhfllllllllllllrhhhh Power hhhhhhhhhhhhfllllllllrhhhhhh POS command zzznozzzzzzzzzzzzzzzzzzzzzzz Resume event zzzzzzzzzzzzzzzzzznozzzzzzzz STPCLK# hhhhhflllllrh”””””””””hhhhhh SLP# hhhhhhfllllrh”””””””””hhhhhh SUSTAT# hhhhhhhflllllllllllllllllrhh CPUSTP# hhhhhhhhfllll”””””””””llrhhh PCISTP# hhhhhhhhfllll”””””””””llrhhh SUS[A-B] hhhhhhhhhfllllllllllrhhhhhhh SUSC hhhhhhhhhhhhhhhhhhhhhhhhhhhh PCIRST# hhhhhhhhhhhfl”””””””””llllrh

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