M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 250

• 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

WATCHDOG TIMER
9.1 Block description
Fig. 9.1.1 Block diagram of watchdog timer
9–2
This chapter describes Watchdog timer.
Watchdog timer has the following functions:
9.1 Block description
Figure 9.1.1 shows the block diagram of the watchdog timer.
Detection of a program runaway.
Measurement of a certain time when oscillation starts owing to terminating Stop mode.
(Refer to “Chapter 10. STOP MODE.”)
RESET
STP instruction
Writing to watchdog timer
register (address 60
detection
circuit
2V
cc
S
R
Q
Hold request
f
16
512
f
32
)
7702/7703 Group User’s Manual
Watchdog timer
“FFF
is set.
16
”
Watchdog timer
interrupt request