SH7708 datasheet(96/633 Pages) RENESAS

Il numero della parte	SH7708

Spiegazioni elettronici	SuperH??RISC engine

PDF	633 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

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3.6.2

Data Array

The data array is assigned to H'F3000000 to H'F3FFFFFF. To access a data array, the 32-bit

address field (for read/write operations), and 32-bit data field (for write operations) must be

specified. These are specified in the general register. The address section specifies information for

selecting the entry to be accessed; the data section specifies the longword data to be written to the

data array (figure 3.14 (2)).

In the address section, specify the entry address for selecting the entry (bits 16–12), W for

selecting the way (bits 9–8: 00 is way 0, 01 is way 1, 10 is way 2, 11 is way 3), and H'F3 to

indicate data array access (bits 31–24). The IX bit in MMUCR indicates whether an EX-OR is

taken of the entry address and ASID.

Both reading and writing use the longword of the data array specified by the entry address and

way number. The access size of the data array is fixed at longword.

SH7708 Scheda tecnica(PDF) 96 Page - Renesas Technology Corp