Overview Of Rom Mirror Function Select Module - Fujitsu MB90335 Series Hardware Manual

CHAPTER 20 ROM MIRROR FUNCTION SELECTION MODULE

20.1 Overview of ROM Mirror Function Select Module

20.1 Overview of ROM Mirror Function Select Module
The ROM mirror function selection module is used to select via register settings an FF
bank in ROM, whose contents can be viewed via 00 bank.
■ Block Diagram of ROM Mirror Function Select Module
Figure 20.1-1 shows the block diagram of ROM mirror function selection module.
Figure 20.1-1 Block Diagram of ROM Mirror Function Select Module
■ Register of ROM Mirror Function Selection Module
Figure 20.1-2 shows the configuration of ROM mirror function select module.
Figure 20.1-2 ROM Mirror Function Selection Module Configuration
ROMM Address : 00006F
456
2
F MC-16LX Bus
bit
15 14
H
FUJITSU MICROELECTRONICS LIMITED
ROM mirror function
selection
Address area
FF bank 00 bank
ROM
13 12 11 10
MB90335 Series
initial value
9 8
MI - - - - - - 11
Reserved
R/W W
CM44-10137-6E
B