M30622ECTFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30622ECTFP Datasheet - Page 11

• Manufacturer Part Number: M30622ECTFP
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Memory
Operation of Functional Blocks
Memory
Figure 1.4.1. Memory map
The M16C/62T group accommodates certain units in a single chip. These units include ROM and RAM to
store instructions and data and the central processing unit (CPU) to execute arithmetic/logic operations.
Also included are peripheral units such as timers, serial I/O, D-A converter, DMAC, CRC calculation circuit,
A-D converter, and I/O ports.
The following explains each unit.
Figure 1.4.1 is a memory map of the M16C/62T group. The address space extends the 1M bytes from
address 00000
Internal ROM is located as the following, in M30623M4T-XXXGP from address F8000
bytes), in M30622M8T/M8V-XXXFP and M30623M8T/M8V-XXXGP from address F0000
(64K bytes), in M30622MCT/MCV-XXXFP and M30623MCT/MCV-XXXGP from address E0000
FFFFF
The vector table for fixed interrupts such as the reset and NMI are mapped to FFFDC
starting address of the interrupt routine is stored here. The address of the vector table for timer interrupts,
etc., can be set as desired using the internal register (INTB). See the section on interrupts for details.
Internal RAM is located as the following, in M30623M4T-XXXGP from address 00400
bytes), in M30622M8T/M8V-XXXFP and M30623M8T/M8V-XXXGP from address 00400
bytes), in M30622MCT/MCV-XXXFP and M30623MCT/MCV-XXXGP from address 00400
(5K bytes). In addition to storing data, the RAM also stores the stack used when calling subroutines and
when interrupts are generated.
The SFR area is mapped to 00000
peripheral devices such as I/O ports, A-D converter, serial I/O, and timers, etc. Figures 1.7.1 to 1.7.3 are
location of peripheral unit control registers. Any part of the SFR area that is not occupied is reserved and
cannot be used for other purposes.
The special page vector table is mapped to FFE00
or the destination addresses of jumps are stored here, subroutine call instructions and jump instructions
can be used as 2-byte instructions, reducing the number of program steps.
In memory expansion mode and microprocessor mode, a part of the spaces are reserved and cannot be
used. For example, in the M30623MCT/MCV-XXXGP, the following spaces cannot be used.
But the M16C/62T group is not guaranteed to operate in memory expansion and microprocessor modes.
• The space between 01000
• The space between D0000
XXXXX
YYYYY
FFFFF
D0000
00000
00400
04000
Tentative Specifications REV.A
16
16
16
16
16
16
16
16
S
(128K bytes).
pecifications in this manual are tentative and subject to change.
For details, see Figures
Internal reserved area
Internal reserved area
Internal RAM area
Internal RAM area
External area
1.7.1 to 1.7.3
SFR area
16
(Note 1)
(Note 1)
to FFFFF
16
.
16
16
and 03FFF
FFFDC
and D7FFF
FFFFF
FFE00
16
16
16
16
to 003FF
Undefined instruction
Watchdog timer
BRK instruction
Address match
Special page
16
vector table
16
Single step
Overflow
(Memory expansion and microprocessor modes)
Reset
DBC
(Memory expansion mode)
NMI
16
11
16
. This area accommodates the control registers for
to FFFDB
Note 1. In memory expansion and microprocessor modes,
Note 2. In memory expansion mode, can not be used.
Note 3. The M16C/62T group is not guaranteed to operate
_______
M30623M4T-XXXGP
M30622MCT/MCV-XXXFP
M30622M8T/M8V-XXXFP
M30623M8T/M8V-XXXGP
M30623MCT/MCV-XXXGP
16
can not be used.
in memory expansion and microprocessor modes.
. If the starting addresses of subroutines
Type No.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Mitsubishi microcomputers
XXXXX
00FFF
013FF
017FF
M16C / 62T Group
16
16
16
16
16
16
16
16
to FFFFF
to FFFFF
to 00FFF
to 013FF
YYYYY
16
E0000
F8000
F0000
16
to FFFFF
to 017FF
16
16
16
16
16
16
16
16
. The
16
(32K
(3K
(4K
16
to
16