欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: L64007
廠商: LSI CORP
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP160
封裝: PLASTIC, QFP-160
文件頁數: 141/166頁
文件大小: 1015K
代理商: L64007
Draft 1/16/97
3-4
Signal Denitions
PRE.4 for Rev. D
Copyright 1997 by LSI Logic Corporation. All rights reserved.
UDS
Upper Byte Data Strobe
Input
When in a write bus cycle, a LOW-to-HIGH transition of
this input indicates that the upper byte data on D[15:8]
has been latched into the L64007 when accessing DRAM
(for register access, D[15:0] is used). When in a read bus
cycle, LOW-to-HIGH transition of this input indicates that
the host processor has latched the upper byte data on
D[15:8].
LDS
Lower Byte Data Strobe
Input
When in a write bus cycle, a LOW-to-HIGH transition of
this input indicates that the lower byte data on D[7:0] has
been latched into the L64007. When in a read bus cycle,
LOW-to-HIGH transition of this input indicates that the
host processor has latched the lower byte data on D[7:0].
DTACK
Data Acknowledge
Output
This active LOW and 3-state output signal is used to
acknowledge data transfer to and from the host processor
bus. It is output driven only when CS is asserted. DTACK
is asserted when the internal L64007 resource signals
that it is ready for the bus cycle to be completed. DTACK
stays LOW until the end of the bus cycle and after UDS,
LDS, and AS have been de-asserted.
INTR
Interrupt
Output
When an internal L64007 interrupt condition occurs, and
this open-drain output signal is unmasked, the INTR line
is driven LOW. When the appropriate internal interrupt
status register is read, the interrupt is cleared automati-
cally.
RESET
Reset
Input
Asserting this active LOW signal resets the L64007 to its
power-on state. To ensure a complete reset of the
L64007, the RESET pulse must be asserted for at least
two Master Clock cycles.
R/W
Read/Write
Input
When this signal is LOW, it indicates an attempt by the
external host processor to write to the L64007. The data
on D[15:0] is latched into the chip on the LOW-to-HIGH
transition of the UDS and LDS signals. When R/W is
HIGH, it indicates an attempt by the external host proces-
sor to read data from the L64007. The L64007 drives
相關PDF資料
PDF描述
L64013A1 SPECIALTY CONSUMER CIRCUIT, PQFP100
L64014A SPECIALTY CONSUMER CIRCUIT, PQFP144
L64015 SPECIALTY CONSUMER CIRCUIT, PQFP144
L64020XDC SPECIALTY CONSUMER CIRCUIT, CBGA208
L64020XQC SPECIALTY CONSUMER CIRCUIT, PQFP160
相關代理商/技術參數
參數描述
L64010ADC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Multiplier/Accumulator
L64010ADCC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Multiplier/Accumulator
L64010ADM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Multiplier/Accumulator
L64010ADMB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Multiplier/Accumulator
L64010ADMC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Multiplier/Accumulator
主站蜘蛛池模板: 宜宾市| 界首市| 清水县| 抚远县| 大关县| 兖州市| 吉木乃县| 当涂县| 商都县| 正定县| 广河县| 清涧县| 莱芜市| 三河市| 都昌县| 临泽县| 耒阳市| 万全县| 吉首市| 云林县| 平舆县| 扶风县| 漳平市| 商丘市| 华亭县| 迭部县| 宁河县| 扬中市| 尉氏县| 平江县| 新晃| 巴楚县| 左贡县| 西昌市| 全州县| 彭州市| 星子县| 泽普县| 无棣县| 察哈| 营山县|