參數(shù)資料
型號: TMP90C051
廠商: Toshiba Corporation
元件分類: 通用總線功能
英文描述: High Speed CMOS 8-bit Microcontroller,Integrating DMA, DRAM Controller,Serial Interface, Timer/Event Counter(高速 CMOS 8位微控制器(芯片集成了DMA,DRAM控制器,串行接口,定時器/事件計數(shù)器))
中文描述: 高速CMOS 8位微控制器,集成的DMA,DRAM控制器,串行接口,定時器/事件計數(shù)器(高速的CMOS 8位微控制器(DMA的芯片集成了,內(nèi)存控制器,串行接口,定時器/事件計數(shù)器))
文件頁數(shù): 145/158頁
文件大?。?/td> 4573K
代理商: TMP90C051
TOSHIBA CORPORATION
145/184
TMP90C051
Figure 3.12 (2) shows typical refresh cycle timing.
Figure 3.12 (2). Typical Refresh Cycle Timing
The method for using the refresh controller block is
described below.
i)
Refresh Method
Refreshing is performed using the CAS and RAS
refresh method using the DRAM built-in refresh
counter.
ii)
Register Setting Method
With the CAS before RAS refresh method, the refresh
interval and refresh cycle width differ depending on the
DRAM used.
The TMP90C051 sets the RAS and CAS output in
accordance with the system clock and DRAM used by
changing the refresh control register value.
Figure 3.12 (3) shows the bit configuration of the
refresh control register used to control RAS and CAS
output.
相關(guān)PDF資料
PDF描述
TMP90C141 High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit A/D Converter,General Serial Interface,Multifunction Timer/Event Counter(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位A/D轉(zhuǎn)換器,通用串行接口,多功能定時器/事件計數(shù)器))
TMP90C400 High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit CPU,RAM,ROM,General Serial Interface,Multifunction Timer/Event Counter(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位CPU,ROM,RAM,通用串行接口,多功能定時器/事件計數(shù)器))
TMP90C401 High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit CPU,RAM,ROM,General Serial Interface,Multifunction Timer/Event Counter(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位CPU,ROM,RAM,通用串行接口,多功能定時器/事件計數(shù)器))
TMP90C800 High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit CPU,RAM,ROM,General Serial Interface,Timer/Event Counter(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位CPU,ROM,RAM,通用串行接口,定時器/事件計數(shù)器))
TMP90C801 High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit CPU,RAM,ROM,General Serial Interface,Timer/Event Counter(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位CPU,ROM,RAM,通用串行接口,定時器/事件計數(shù)器))
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