Evaluation Board Controls - Fujitsu F2MC-16L Series User Manual

2.4. Evaluation Board Controls

Memory mapping is introduced in this concept as a means of allowing the user to run his own
application as it would be in the final target system, in the final memory area. This is the so-
called User 0 Mode, which is the default operating mode for all users. All other modes
(User 1a, User 1b) can be used by advanced programmers in order to start application
software from one's extension EPROM for example.
From now on the terms "bank" and "page" are used as follows: "Bank" refers to a 64 KB area
of an specific external component. E.g. the two RAM chips contains four RAM banks each
64 KB of size. "Page" refers to a specific 64 KB memory area indicated by the bits 16 ... 19 of
an address. E.g. xAxxxxh accesses page A. That means, every bank is existing only once, but is
accessible in different pages. However, the CPU bank register always refer to the bits 16 ... 19
of an address.
The monitor software resides in two fixed ROM banks on memory pages C and D (see fig. 2).
This area (128 KB) is not available for the user. However, there are 256 KB RAM
(pages 8..B) provided for user program and data.
At the moment of a Monitor Reset (or due to register settings) the monitor ROM is mapped to
the upper area (memory pages E, F) to enable the controller to read the reset vector. After
User Reset these upper pages are taken by mapped RAM or so-called "Module" banks.
xF0000..xFFFFF
xE0000..xEFFFF
xD0000..xDFFFF
xC0000..xCFFFF
xB0000..xBFFFF
xA0000..xAFFFF
x90000..x9FFFF
x80000..x8FFFF
x70000..x7FFFF
x30000..x6FFFF
x20000..x2FFFF
x10000..x1FFFF
x00000..x0FFFF
000000..00FFFF
Fig. 2: Memory mapping of the Evaluation Board
Three different 64 KB blocks (Module 0..2) are selectable by additional chip select signals.
Module 0 is selected by CS0 , CS1 selects Module 1 and CS2 selects module 2. Module 1
and 2 are always located on page 1 respectively page 2. In Monitor Mode and User Mode 0
the Module 0 is mapped to page 0.
© FUJITSU Mikroelektronik GmbH 1996
FUJITSU MB90675-Evaluation Board - User Manual
Memory Mapping Modes
Monitor
Page Bank
Address
AAAA AAAA AAAA
AAAA AAAA AAAA
F
AAAA AAAA AAAA
ROM1
AAAA AAAA AAAA
AAAA AAAA AAAA
AAAA AAAA AAAA
E
ROM0
AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA
D
ROM1
AAAA AAAA AAAA
AAAA AAAA AAAA
AAAA AAAA AAAA
C
AAAA AAAA ROM0 AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA
B
RAM3
AAAA AAAA AAAA
AAAA AAAA AAAA
AAAA AAAA AAAA
AAAA AAAA AAAA
A
RAM2
AAAA AAAA AAAA
AAAA AAAA AAAA
AAAA AAAA AAAA
AAAA AAAA 9 AAAA AAAA AAAA AAAA
RAM1
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA
AAAA AAAA AAAA
8
RAM0
AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA
7
AAAA AAAA AAAA
AAAA AAAA AAAA
6
3
AAAA AAAA AAAA
AAAA AAAA AAAA
AAAA AAAA AAAA
2
AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA
1
AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA
0
AAAA AAAA Module 0 (/CS0) AAAA
AAAA AAAA AAAA
peripherals, internal/exernal, I/O memory
0'
User0 User1a
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
RAM3
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
RAM2
Module 0
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
shadow
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
memory
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA 10KB monitor data AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
control register bank
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
expansion area - 256 KB
(selectable by /EXP signal)
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
Module 2 (/CS2)
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
Module 1 (/CS1)
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA RAM0
AAAA AAAA AAAA AAAA AAAA AAAA AAAA
User1b
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAA A
AAAA AAAA AAAA AAAA AAAA AAAA AAA A A
Module 1
AAAA AAAA AAAA AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAA A A
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAA A A
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAA A A
AAAA AAAA AAAA AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAA
AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA
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