M30622 Mitsubishi, M30622 Datasheet - Page 24

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Memory Space Expansion Functions
Figure 1.8.3. External memory connect example in expansion mode 1
A connection example
Figure 1.8.3 shows a connection example of the MCU with the external memories in expansion mode 1.
In this example, CS0 is connected with a 1-M byte flash ROM and CS2 is connected with a 128-K byte
SRAM.
Tentative Specifications REV.A
S
pecifications in this manual are tentative and subject to change.
An example of connecting the MCU with external memories in expansion mode 1
FFFFF
017FF
D0000
00000
00400
04000
08000
28000
30000
(An example of using M30622MC in microprocessor mode)
A0 to A16
D0 to D7
16
16
16
16
16
16
16
16
16
CS0
CS1
CS2
CS3
A18
A17
A19
WR
RD
Note 1. M30623(80-pin package) is not provided with the output pin
Note 2. The M16C/62T group is not guaranteed to operate
Internal area reserved
_______
Internal RAM
External area
SFR area
area
for the chip select signal.
in memory expansion and microprocessor modes.
17
8
D0 to D7
A0 to A16
A19
DQ0 to
DQ7
A0 to A16
A17
A18
OE
CS
OE
S2
S1
W
(128K bytes)
Usable for
data only
SRAM
(128K bytes)
24
CS2
Usable both for
programs only
programs and
(1M byte)
Usable for
Flash
ROM
for data
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
_______
(1008K bytes)
CS0
Mitsubishi microcomputers
M16C / 62T Group