M30622MCT Datasheet, PDF (23/184 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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Tentative Specifications REV.A
Specifications in this manual are
tentative
and
subject
to
change.
Mitsubishi microcomputers
M16C / 62T Group
Memory Space Expansion Functions
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
(2) Expansion mode 1
In this mode, the memory space can be expanded by 176K bytes in addition to that in normal mode.
Figure 1.8.2 shows the memory location and chip select area in expansion mode 1.
_______ _______
_______
In accessing data in expansion mode 1, CS3, CS2, and CS1 go active in the area from 0400016 through
_______
2FFFF16; in fetching a program, CS0 goes active. That is, the address space is expanded by using the
________ _______ _______
area from 0400016 through 2FFFF16 (176K bytes) appropriately for accessing data (CS3, CS2, CS1)
_______
and fetching a program (CS0).
Expansion mode 1 (memory space = 1.2M bytes for PM15 = 1, PM14 = 0)
0000016
0040016
XXXXX16
0400016
Memory
expansion mode
SFR area
Internal RAM
area
Internal area reserved
0800016
2800016
3000016
External area
D000016 _{Internal area reserved}
YYYYY16
FFFFF16
Internal ROM
area
Microprocessor
mode
SFR area
Internal RAM
area
Internal area reserved
CS3^{(16K bytes)}
CS2(128 Kbytes)
External
area
CS1(32K bytes)
CS0
Memory expansion
mode:
816K bytes
Microprocessor mode:
1008K bytes
0400016
to
176K bytes
2FFFF16 = the extent of memory expanded
CS0:active in fetching a program
CS1, CS2, CS3:active in accessing data
3000016
to
FFFFF16
CS0:active both in fetching a program
and in accessing data
Type No.
XXXXX16 YYYYY16
M30623M4T-XXXGP
00FFF16 F800016
M30622M8T/M8V-XXXFP _{013FF16 F000016}
M30623M8T/M8V-XXXGP
M30622MCT/MCV-XXXFP
017FF16 E000016
M30623MCT/MCV-XXXGP
Note 1. M30623(80-pin package) is not provided with the
output pin for the chip select signal.
Note 2. The M16C/62T group is not guaranteed to operate
in memory expansion and microprocessor modes.
Note 3. The memory maps in single-chip mode are omitted.
Figure 1.8.2. Memory location and chip select area in expansion mode 1
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