M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 290

• 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

reset and Software reset.
microcomputer is reset by supplying “L” level to the
13.1.1 shows an example of hardware reset timing.
Fig. 13.1.1 Example of hardware reset timing
RESET
13.1 Hardware reset
This chapter describes the method to reset the microcomputer. There are two methods to do that: Hardware
13.1 Hardware reset
When the power source voltage satisfies the microcomputer’s recommended operating conditions, the
The following explains how the microcomputer operates for terms
13–2
After supplying “L” level to the
ns. (Refer to Table 13.1.1.)
While the
______
RESET
area. At this time, the contents of the internal RAM area become undefined (except when Stop or Wait
mode is terminated). (Refer to Figures 13.1.2 to 13.1.6.)
After
The microcomputer executes a program beginning with the address set into the reset vector addresses
which are FFFE
Note: When the clock is stably supplied. (Refer to “13.1.4 Time supplying “L” level to RESET pin.”)
RESET
, the microcomputer performs “Internal processing sequence after reset.” (Refer to Figure 13.1.7.)
pin goes from “L” to “H,” the microcomputer initializes the central processing unit (CPU) and SFR
RESET
______
“H”
“L”
16
pin is “L” level and within the term of 4 to 5 cycles of the internal clock
and FFFF
2
16
.
______
RESET
s or more
7702/7703 Group User’s Manual
pin, the microcomputer initializes pins within a term of several ten
4 to 5 cycles of
RESET
______
Internal processing
sequence after a
reset
pin. This is called a hardware reset. Figure
to
above.
Program is executed.
after the