Overview Of The Rom Mirroring Function Selection Module - Fujitsu MB90460 Series Hardware Manual

CHAPTER 22 ROM MIRRORING FUNCTION SELECTION MODULE
22.1

Overview of the ROM Mirroring Function Selection Module

The ROM mirroring function selection module can access bank FF located in ROM from
bank 00 by setting the register.
■ ROM Mirroring Function Selection Module Register
ROM Mirror Function Selection Register
Address : 00006F
Read/write
Initial value
■ ROM Mirroring Function Selection Module Block Diagram
Figure 22.1-1 ROM Mirroring Function Selection Module Block Diagram
584
bit 15 14 13
— — —
H
(–) (–)
(–)
(–) (–)
(–)
FF bank
12 11
10
— —
—
(–)
(–) (–)
(–) (–) (–)
ROM mirroring register
Address area
00 bank
ROM
9 8
— MI
ROMM
(–) (W)
(–) (1)