Datasheet

Table Of Contents
Section 20 Masked ROM
REJ09B0140-0900 Rev. 9.00 Page 665 of 846
Sep 16, 2010
H8S/2215 Group
Section 20 Masked ROM
This LSI incorporates a masked ROM which has the following features.
20.1 Features
Size:
Product Class ROM Size ROM Address (Modes 6 and 7)
H8S/2215 Group HD6432215B 128 kbytes H'000000 to H'01FFFF
HD6432215C 64 kbytes H'000000 to H'00FFFF
Connected to the bus master through 16-bit data bus, enabling one-state access to both byte
data and word data.
Figure 20.1 shows a block diagram of the on-chip masked ROM.
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'000000
H'000002
H'000001
H'000003
H'03FFFE H'03FFFF
Figure 20.1 Block Diagram of On-Chip Masked ROM (256 kbytes)