hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 185
hd64338023s
Manufacturer Part Number
hd64338023s
Description
Renesas 8-bit Single-chip Microcomputer Super Low Power Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD64338023S.pdf
(697 pages)
- Current page: 185 of 697
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6.1
The H8/38024, H8/38024S, and H8/38124 have 32 Kbytes of on-chip mask ROM, the H8/38023,
H8/38023S, and H8/38123 have 24 Kbytes, the H8/38022, H8/38022S, and H8/38122 have 16
Kbytes, the H8/38021, H8/38021S, and H8/38121 have 12 Kbytes, and the H8/38020, H8/38020S,
and H8/38120 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 H8/38024 has a ZTAT version
and F-ZTAT version with 32-Kbyte PROM and flash memory. F-ZTAT™ versions of the
H8/38124 and H8/38122 are available. The former has 32 Kbytes, and the latter 16 Kbytes, of
flash memory.
6.1.1
Figure 6.1 shows a block diagram of the on-chip ROM.
Overview
Block Diagram
H'7FFE
H'0000
H'0002
Figure 6.1 ROM Block Diagram (H8/38024)
Even-numbered
Internal data bus (upper 8 bits)
address
Internal data bus (lower 8 bits)
H'7FFE
H'0000
H'0002
Section 6 ROM
On-chip ROM
Odd-numbered
address
Rev. 7.00 Mar 10, 2005 page 143 of 652
H'7FFF
H'0001
H'0003
REJ09B0042-0700
Section 6 ROM
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