Datasheet

Section 18 Masked ROM
Rev.7.00 Dec. 24, 2008 Page 593 of 698
REJ09B0074-0700
Section 18 Masked ROM
This LSI incorporates a masked ROM which has the following features.
18.1 Features
• Size
Product Class ROM Size ROM Address (Modes 6 and 7)
H8S/2218 Group HD6432217 64 kbytes H'000000 to H'00FFFF
H8S/2212 Group HD6432211 64 kbytes H'000000 to H'00FFFF
HD6432210, HD6432210S 32 kbytes H'000000 to H'007FFF
• Connected to the bus master through 16-bit data bus, enabling one-state access to both byte
data and word data.
Figure 18.1 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'00FFFE H'00FFFF
Figure 18.1 Block Diagram of On-Chip Masked ROM (64 kbytes)