H8SLASH3003 datasheet(219/715 Pages) RENESAS

No. de pieza	H8/3003

Descripción Electrónicos	microcontroller (MCU)

PDF	715 Pages

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Fabricante Electrónico	RENESAS [Renesas Technology Corp]

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Table 8-7 Register Functions in Idle Mode

Function

Activated by

SCI Receive-

Data-Full

Other

Interrupt

Activation

Initial Setting

Operation

Destination

Source

Destination or

Held fixed

address

source address

Source

Destination

Source or

Held fixed

address

destination

address

Transfer counterNumber of

Decremented

transfers

once per

transfer until

H'0000 is

reached and

transfer ends

Legend

MAR:

Memory address register

IOAR: I/O address register

ETCR: Execute transfer count register

MAR and IOAR specify the source and destination addresses. MAR specifies a 24-bit source or

destination address. IOAR specifies the lower 8 bits of a fixed address. The upper 16 bits are all

1s. MAR and IOAR are not incremented or decremented.

Figure 8-4 illustrates how idle mode operates.

Figure 8-4 Operation in Idle Mode

MAR

All 1s

IOAR

ETCR

Transfer

1 byte or word is

transferred per request

IOAR

MAR

201

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