SH7721 datasheet(1022/1524 Pages) RENESAS

Part #	SH7721

Description	Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

PDF	1524 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 29

PC Card Controller (PCC)

Rev. 3.00 Jan. 18, 2008 Page 960 of 1458

REJ09B0033-0300

In area 6, set 1 in bit 0 (P0REG) of the general control register to access the common memory

space of the PC card, and set 0 in bit 0 to access the attribute memory space (initial value: 0). By

this operation, the set value is output to

PCC_REG pin, enabling any space to be accessed. When

the I/O space is accessed in area 6, the output of

PCC_REG pin is always 0 regardless of the value

of bit 0 (P0REG).

See the register descriptions in section 29.3, Register Descriptions for details of register settings.

This LSI memory

space

PC card address

space

General control

P0MMOD = 0

P0PA24 = x

P0PA25 = x

P0REG = 0 (attribute)

P0PA25 = 0

P0REG = 1 (common

memory)

P0PA25 = 0

P0REG = 1 (common

memory)

P0PA25 = x

P0REG = x

PCCREG is always 0

Attribute memory/

common memory

32 Mbytes

I/O space

32 Mbytes

P0REG

P0PA25

H'18000000

H'1A000000

x: Don't care

Area 6

32 Mbytes

I/O space

Common mermoy

32 Mbytes

Total 64 Mbytes

Attribute memory

Figure 29.2

Continuous 32-Mbyte Area Mode

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