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型號：	HD6433045
廠商：	Hitachi,Ltd.
英文描述：	Multipole Connector; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No RoHS Compliant: No
中文描述：	日立單片機
文件頁數(shù)：	238/867頁
文件大小：	2771K
代理商：	HD6433045

Activation by External Request:

If an external request (

pin) is selected as an activation

pin becomes an input pin and the corresponding

pin becomes an output

pin, regardless of the port data direction register (DDR) settings. The

input can be level-

sensitive or edge-sensitive.

In short address mode and normal mode, an external request operates as follows. If edge sensing is

selected, one byte or word is transferred each time a high-to-low transition of the

detected. If the next edge is input before the transfer is completed, the next transfer may not be

executed. If level sensing is selected, the transfer continues while

is low, until the transfer

is completed. The bus is released temporarily after each byte or word has been transferred,

however. If the

input goes high during a transfer, the transfer is suspended after the current

byte or word has been transferred. When

goes low, the request is held internally until one

byte or word has been transferred. The

signal goes low during the last write cycle.

In block transfer mode, an external request operates as follows. Only edge-sensitive transfer

requests are possible in block transfer mode. Each time a high-to-low transition of the

input is detected, a block of the specified size is transferred. The

signal goes low during the

last write cycle in each block.

Activation by Auto-Request:

The transfer starts as soon as enabled by register setup, and

continues until completed. Cycle-steal mode or burst mode can be selected.

In cycle-steal mode the DMAC releases the bus temporarily after transferring each byte or word.

Normally, DMAC cycles alternate with CPU cycles.

In burst mode the DMAC keeps the bus until the transfer is completed, unless there is a higher-

priority bus request. If there is a higher-priority bus request, the bus is released after the current

byte or word has been transferred.

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HD6433047	CONN HEADER .100 SNGL STR 36POS
HD6433048	Hitachi Single-Chip Microcomputer
HD64F3642A	H8/3644 Series Hardware Manual
HD6473644	H8/3644 Series Hardware Manual
HD64F3643	H8/3644 Series Hardware Manual

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
HD6433045F	制造商:未知廠家制造商全稱:未知廠家功能描述:32-Bit Microcontroller
HD6433045TF	制造商:未知廠家制造商全稱:未知廠家功能描述:32-Bit Microcontroller
HD6433045VF	制造商:未知廠家制造商全稱:未知廠家功能描述:32-Bit Microcontroller
HD6433045VTF	制造商:未知廠家制造商全稱:未知廠家功能描述:32-Bit Microcontroller
HD6433047	制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Hitachi Single-Chip Microcomputer

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