M37754 Mitsubishi, M37754 Datasheet - Page 15

• Manufacturer Part Number: M37754
• Description: SINGLE-CHIP 16BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Fig. 7 Bus cycle selection (high-speed running)
2- access (Note)
3- access (Note)
Note: Refer to internal memory access bus cycle select bit (bit 2
RD
WR
A
D
i
i
RD
WR
A
D
i
i
ADRS : Address
R-D
W-D : Write data
of processor mode register 0 ; Figure 14).
Read
Read
1bus cycle = 2
1bus cycle = 3
: Read data
ADRS
ADRS
Internal memory access
RD
WR
A
D
i
i
RD
WR
A
D
i
i
Write
Write
1bus cycle = 3
1bus cycle = 2
ADRS
W-D
High-speed running (
M37754M8C-XXXGP, M37754M8C-XXXHP
ADRS
W-D
3- access
4- access
RD
WR
A
D
5- access
RD
WR
A
D
i
i
i
i
1
M37754S4CGP, M37754S4CHP
RD
WR
A
D
Read
Read
i
i
20 MH
Read
1bus cycle = 4
1bus cycle = 5
1bus cycle = 3
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Z
)
ADRS
ADRS
ADRS
External memory access
R-D
R-D
MITSUBISHI MICROCOMPUTERS
R-D
RD
WR
A
D
RD
WR
A
D
i
i
i
i
RD
WR
A
D
i
i
Write
Write
Write
1bus cycle = 3
1bus cycle = 4
1bus cycle = 5
ADRS
ADRS
W-D
ADRS
W-D
W-D
15