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)： 152/158頁
文件大?。?/td> 4573K
代理商： TMP90C051
152/184
TOSHIBA CORPORATION
TMP90C051
ii)
Start Address Setting Method
The address decoder outputs the CS signal when the
start address and area size are specified.
As shown in the diagram, the start address is decoded
by A15 - A22 and is therefore set every 32K bytes.
In other words, the DRAM start address is set every
32K bytes, starting at 000000H.
<Note> The start address is changed to set the value
of MSAMR register.
Figure 3.12 (10). Start Address Setting Locations
iii)
Address Area Setting Method
The address area is specified by setting the start
address mask register (MSAMR).
As can be seen from the address decoder block diagram
(Fig. 3.12 (9), the address area that can output CS is
specified depending on whether or not the A14 - A21
address values are compared.
In other words, it is possible to specify an area of up to
4M bytes in 16K byte units.
iii)
Procedures for Setting Start Address/Address Area
(1)
Set the memory start address mask register (MSAMR)
(Setting the address area)
(2)
Set the memory start address mask register (MSAR)
(Setting the area start address)
(3)
Compare values of the same address bit of MSAMR
and MSAR. (Ex.) Compare values of MSAMR <V15>
and MSAR <S15>.
(4)
If the values of the same address bit are “1”, the bit in
MSAR becomes ineffective and is regarded as “0”.
The start address is changed.
If the values of the same address bit are not matched
by “1”, the set-up is complete. (The specified address
area and start address are decoded.)
(5)
When the start address is changed correctly, the set-up is
complete. If not so, change the MSAR value.
(6)
Set MSAR again and compare. (Start from (3).)
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）)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMP90C051F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TMP90C141 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
TMP90C141F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TMP90C141N 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TMP90C400 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
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