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): 12/158頁
文件大小: 4573K
代理商: TMP90C051
12/184
TOSHIBA CORPORATION
TMP90C051
3.3 Interrupt Functions
The TMP90C051F has a general-purpose interrupt process-
ing routine for responding to both internal and external inter-
rupt requests, a micro DMA processing mode in which the
CPU automatically transfers data, and a high-speed micro
DMA (HDMA) processing mode.
Immediately after a reset is released, all responses to
interrupt requests are set to the general-purpose interrupt
processing mode. The interrupt requests can be set to the
micro DMA processing mode with the DMA enable/disable
register which is described later.
The high-speed DMA processing mode can be set by
loading a vector value to the DMAV 0/1 register.
Figure 3.3 (1) shows the interrupt response flow.
Figure 3.3 (1). Interrupt Response Flow
When an interrupt request is generated, this is reported to
the CPU via the built-in interrupt controller. If the request is for
a non-maskable interrupt or an enabled maskable interrupt,
the CPU starts interrupt processing. If for a disabled maskable
interrupt, the request is ignored and not received.
If the interrupt is received, the CPU first reads the interrupt
vector from the built-in interrupt controller to determine the
source of the interrupt request.
Next, a check is made as to whether this request is for
general-purpose interrupt processing, micro DMA processing
or high-speed DMA (HDMA) processing, and then the corre-
sponding processing is performed.
The interrupt vector is read in an internal operation cycle
so the bus cycle becomes a dummy cycle.
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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: