HD6473847RHV Datasheet, PDF (165/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 6 ROM
Section 6 ROM
The H8/3802 has 16 kbytes of the on-chip mask ROM, the H8/3801 has 12 kbytes, and the
H8/3800 has 8 kbytes. The H8/38004 and H8/38104 have 32 kbytes of the on-chip mask ROM,
the H8/38003 and H8/38103 have 24 kbytes, the H8/38002, H8/38002S and H8/38102 have 16
kbytes, the H8/38001, H8/38001S and H8/38101 have 12 kbytes, and the H8/38000, H8/38000S
and H8/38100 have 8 kbytes. The ROM is connected to the CPU by a 16-bit data bus, allowing
high-speed two-state access for both byte data and word data. The H8/3802 has a ZTAT version
with 16-kbyte PROM. The H8/38004, H8/38002, H8/38104, and H8/38102 have F-ZTAT™
versions with 32-kbyte flash memory and 16-kbyte flash memory, respectively.
6.1 Block Diagram
Figure 6.1 shows a block diagram of the on-chip ROM.
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'0000
H'0002
H'0000
H'0002
H'0001
H'0003
H'3FFE
On-chip ROM
H'3FFE
H'3FFF
Even address
Odd address
Figure 6.1 Block Diagram of ROM (H8/3802)
ROM3322A_000020020900
Rev. 7.00 Mar. 08, 2010 Page 133 of 510
REJ09B0024-0700