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): 43/158頁
文件大?。?/td> 4573K
代理商: TMP90C051
TOSHIBA CORPORATION
43/184
TMP90C051
(2)
EXPA0 (Expand Register 0) and EXPA1 (Expand Register 1)
Figure 3.4 (7). EXP0, EXPA1 Configuration
EXPA0 is set to map the logical address area in local 0
to the physical address area when the local 0 address
area is accessed by the CPU. All bits are set to “0” by
resets.
EXPA1 is set to map the logical address area in local 1
to the physical address area when the local 1 address
area is accessed by the CPU. All bits are set to “0” by
resets.
For both EXPA0 and EXPA1, the 16-bit transfer
instruction loads the upper address bits to A22 - A20
and the lower address bits to A19 - A12. Loading is
also possible with 8-bit transfer instructions.
Both EXPA0 and EXPA1 can be read and written.
Use the common area (in the logical address area) to
write overwrite EXPA0 and EXPA1. When loading to
the logical address area, the contents of EXPA0 and
EXPA1 are mapped to the physical address area
immediately after the instruction used to load is executed.
Note: When overwriting EXPA0 and EXPA1 in the physi-
cal address area, use caution concerning the
addresses in the physical address area to which
the addresses in the current logical address area
are mapped. This is because the addresses are
mapped to a different physical address area
immediately after the instruction used to over-
write is executed.
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))
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