M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 363

• Manufacturer Part Number: M37702E6BFS
• Description: EPROM MCU/8BIT CMOS EMULATION CH
• Manufacturer: Renesas Electronics America

Specifications of M37702E6BFS

• Accessory Type: Emulator EPROM MCU
• For Use With/related Products: 7702
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

17.2 Sample program execution rate comparison
Sample program execution rates are compared in this paragraph.
The execution time ratio depends on the program or the usage conditions.
Table 17.2.1 Sample program execution time ratio (external data bus width and software Wait)
Calculation value : The value is calculated from the shortest execution cycle number of each instruction
Calculation value
External
17.2.1 Difference depending on data bus width and software Wait
Internal areas are always accessed at 16-bit data bus width and without software Wait. In the external
areas, the external data bus width and software Wait are selectable. Table 17.2.1 lists the sample program
(refer to Figure 17.2.1) execution time ratio depending on these selection and used memory areas.
Internal
Internal
RAM
Memory area
External
External
Internal
ROM
External data bus
described in the software manual.
width (bit)
(16)
16
16
8
8
7702/7703 Group User’s Manual
17.2 Sample program execution rate comparison
Software Wait
(Nothing)
Inserted
Inserted
Inserted
Inserted
Nothing
Nothing
Nothing
Nothing
Sample program execution time ratio
Sample A
1.00
1.00
1.17
1.19
1.67
1.00
1.25
1.19
1.78
0.92
APPLICATION
Sample B
1.00
1.00
1.10
1.08
1.46
1.00
1.17
1.13
1.65
0.90
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