參數(shù)資料
型號(hào)： 24267A
英文描述： Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors
中文描述： “AMD的K6E家庭”，“嵌入”，“處理器的AMD PowerNow??？技術(shù)平臺(tái)設(shè)計(jì)指南應(yīng)用指南“
文件頁(yè)數(shù)： 26/50頁(yè)
文件大?。?/td> 957K
代理商： 24267A
20
Hardware Implementation
AMD PowerNow! Technology Platform Design Guide for Embedded Processors
24267A/0—December 2000
Preliminary Information
Safe Voltage and Frequency Combination at Reset
A safe voltage and frequency combination at reset is a
combination that provides functional processor operation
conditions when RESET is negated.
Minimum Frequency
Initialization
Systems that strap the processor BF[2:0] inputs to 100b
configure the processor to boot with a core frequency of 2.0x
the processor bus frequency upon RESET, which is the lowest
supported frequency, are set for the
minimum
frequency
initialization.
I
The advantage to this implementation is that any supported
AMD-K6-2E+ and AMD-K6-IIIE+ processor core voltage can
be used for proper operation for the minimum frequency
setting with the BF multiplier of 2.0x.
The disadvantage of this method is that the maximum rated
frequency of the processor cannot be determined by the
state of the BF[2:0] pins.
I
C
onnecting the processor’s VID[4:0] outputs to the regulator’s
D[4:0] inputs through a multiplexer that selects the processor’s
VID[4:0] outputs when SPWRGD = 1 will result in a CPU
voltage of 1.5 V. If the processor’s VID[4:0] outputs are mapped
with a one-to-one correspondence to the regulator’s D[4:0]
inputs, it is required that the multiplexer drive 01010b to the
D[4:0] regulator inputs, respectively, when SPWRGD = 0. This
maintains V
CC2
continuity at 1.5 V for the core voltage as
SPWRGD transitions from unstable to good. The combination of
1.5 V and a 2.0x bus frequency multiplier provides a voltage and
frequency at power up that guarantees functional operating
conditions.
If the BF[2:0] inputs are strapped to select a 2.0x bus frequency
multiplier, but a higher performance level is desired before
loading the OS, then it is the responsibility of the BIOS or the
RTOS to adjust the processor’s core frequency and voltage to
the desired operational level early in the POST routine.
相關(guān)PDF資料
PDF描述
2429 FLUID DETECTOR
242NQ030 SCHOTTKY RECTIFIER
242NQ030R 30V 240A Schottky DISCR. (R) Diode in a D-67 HALF-Pak package
24304 SCHRAUBENSICHERUNG 243 10ML
243101 USB CABLE A TO B 1.0M
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
24268 制造商:Schneider Electric 功能描述:C60N 2P 10A CURVA C
2426GCA40CP 制造商:LG Corporation 功能描述:CPT SET
2426GF239AR 制造商:LG Corporation 功能描述:CPT,ITC
2427 功能描述:螺絲和緊固件 6-32 .375 SHLDR SCW RoHS:否 制造商:Unspecified 產(chǎn)品: 類型:Washer 螺紋大小: 長(zhǎng)度: 材料:Steel 電鍍:Nickel 螺絲頭: 螺絲類型:
24270 制造商:Schneider Electric 功能描述:C60N 2P 16A CURVA C
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*