M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 34

• Manufacturer Part Number: M30622M4
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Bus Control
34
Table 1.12.2. External areas specified by the chip select signals
(A product having an internal RAM of more than 15K bytes and a ROM of more than 192K bytes)
Figure 1.12.1. Chip select control register
expansion mode
Memory space
Normal mode
(PM15,14=0,0)
Expansion
mode 1
(PM15,14=1,0)
Expansion
mode 2
(PM15,14=1,1)
Chip select control register
b7
b6
b5
b4
Memory expansion mode
Microprocessor mode
Microprocessor mode
Memory expansion mode
Microprocessor mode
Memory expansion mode
b3
b2
Processor mode
b1
b0
Bit symbol
CS0
CS1
CS2
CS3
CS0W
CS1W
CS2W
CS3W
Symbol
CSR
CS0 output enable bit
CS1 output enable bit
CS2 output enable bit
CS3 output enable bit
CS0 wait bit
CS1 wait bit
CS2 wait bit
CS3 wait bit
When PM13=0
40000
06000
30000
When PM13=1
30000
30000
04000
04000
06000
40000
When PM13=1
When PM13=1
When PM13=0
When PM13=0
(512K bytes X 8)
(512K bytes X 7
(1008K bytes)
(1000K bytes)
(744K bytes)
+256K bytes)
(640K bytes)
(576K bytes)
(816K bytes)
(816K bytes)
Bit name
16
16
16
16
16
16
16
16
16
CS0
to BFFFF
to BFFFF
to CFFFF
to BFFFF
to FFFFF
to CFFFF
to FFFFF
to BFFFF
to FFFFF
Address
0008
16
16
16
16
16
16
16
16
16
16
When reset
(32K bytes)
(96K bytes)
0 : Chip select output disabled
1 : Chip select output enabled
0 : Wait state inserted
1 : No wait state
28000
28000
Chip select signal
2FFFF
3FFFF
01
(Normal port pin)
CS1
16
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
16
16
16
to
to
Function
(128K bytes)
08000
27FFF
CS2
16
16
to
Mitsubishi microcomputers
M16C / 62 Group
R
When PM13=0
When PM13=1
W
(16K bytes)
04000
06000
(8K bytes)
07FFF
07FFF
CS3
16
16
16
16
to
to