H838024R datasheet(109/697 Pages) RENESAS

109 / 697 page

Section 2 CPU

Rev. 7.00 Mar 10, 2005 page 67 of 652

REJ09B0042-0700

Interrupt vector area

(42 bytes)

On-chip ROM

32 Kbytes

User Area

Internal RAM

Not used

LCD RAM

(16 bytes)

Internal I/O registers

(128 bytes)

(1-Kbyte work area for flash

memory programming)

Access

Word

Byte





Not used





Not used





States

1024 bytes

H'FFA8 to H'FFAF

H'0000

H'0029

H'002A

H'7FFF

H'F740

H'F020

H'F02B

H'F74F

H'F780

H'FB7F

H'FB80

H'FF7F

H'FF80

H'FFFF

Notes:

These examples apply to the H8/38024.

1. On the H8/38024, H8/38124, and H8/38024S, 32 Kbytes and the address is H'7FFF; on the

H8/38023, H8/38123, and H8/38023S, 24 Kbytes and the address is H'5FFF; on the

H8/38022, H8/38122, and H8/38022S, 16 Kbytes and the address is H'3FFF; on the

H8/38021, H8/38121, and H8/38021S, 12 Kbytes and the address is H'2FFF; on the

H8/38020, H8/38120, and H8/38020S, 8 Kbytes and the address is H'1FFF.

2. On the H8/38021, H8/38121, H8/38021S, H8/38020, H8/38120, and H8/38020S, 512 bytes

and the address is H'FD80.

3. Only the HD64F38024, HD64F38024R, HD64F38122, and HD64F38124 are equipped with

internal I/O registers from H'F020 to H'F02B and on-chip RAM from H'F780 to H'FB7F.

Attempting to access these areas on products other than the HD64F38024, HD64F38024R,

HD64F38122, and HD64F38124 will result in access to an empty area.

H'FF98 to H'FF9F

Internal I/O registers

Figure 2.17 Data Size and Number of States for Access to and from

On-Chip Peripheral Modules

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