Section 20 Masked Rom; Features; Figure 20.1 Block Diagram Of On-Chip Masked Rom (256 Kbytes) - Hitachi H8S/2215 Series Hardware Manual

This LSI incorporates a masked ROM which has the following features.
20.1

Features

• Size:
Product Class
H8S/2215 series HD6432215A
HD6432215B
HD6432215C
• 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.

Figure 20.1 Block Diagram of On-Chip Masked ROM (256 kbytes)

Section 20 Masked ROM

ROM Size
256 kbytes
128 kbytes
64 kbytes
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'000000
H'000002
H'03FFFE
ROM Address (Modes 6 and 7)
H'000000 to H'03FFFF
H'000000 to H'01FFFF
H'000000 to H'00FFFF
H'000001
H'000003
H'03FFFF
Rev. 3.0, 10/02, page 593 of 686