2. CPU
Rev.3.00 Jul. 19, 2007 page 63 of 532
REJ09B0397-0300
Interrupt vector area
(42 bytes)
On-chip ROM
60 kbytes
*
1
On-chip RAM
Not used
Internal I/O registers
(128 bytes)
Access
Word
Byte
2
—
—
—
2
2
3
2
States
2048 bytes
*
2
H'FFA8
H'FFAD
H'0000
H'0029
H'002A
H'EDFF
H'F780
H'FF7F
H'FF80
H'FFFF
*
1
Notes: The above example is a description of the H8/3857, H8/3857F, and H8/3854F.
1. The H8/3855 has 40 kbytes of on-chip ROM, ending at address H'9FFF, the H8/3856 has 48 kbytes, ending at
address H'BFFF, the H8/3852 has 16 kbytes, ending at address H'3FFF, the H8/3853 has 24 kbytes, ending at
address H'5FFF, and the H8/3854 (mask ROM version) has 32 kbytes, ending at address H'7FFF.
2. The H8/3857 Group and the H8/3854F have 2,048 bytes of on-chip RAM, and the H8/3854 Group (mask ROM
version) has 1,024 bytes, starting at address H'FB80.
Figure 2.17 Data Size and Number of States for Access to and from
On-Chip Peripheral Modules
Summary of Contents for F-ZTAT H8 Series
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