upd78f0124m6gba1-8et Renesas Electronics Corporation., upd78f0124m6gba1-8et Datasheet - Page 354

• Manufacturer Part Number: upd78f0124m6gba1-8et
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

354
(b) Release by RESET input
Internal oscillation clock
When the RESET signal is input, HALT mode is released, and then, as in the case with a normal reset
operation, the program is executed after branching to the reset vector address.
Remarks 1. f
RESET signal
Status of CPU
X1 input clock
RESET signal
Status of CPU
2. f
XP
R
: Internal oscillation clock frequency
: X1 input clock oscillation frequency
Operating mode
(X1 input clock)
(2) When internal oscillation clock is used as CPU clock
Figure 18-4. HALT Mode Release by RESET Input (1/2)
oscillation clock)
Operating mode
(Internal
(1) When X1 input clock is used as CPU clock
instruction
HALT
instruction
CHAPTER 18 STANDBY FUNCTION
Oscillates
HALT
User’s Manual U16315EJ3V1UD
Oscillates
HALT mode
HALT mode
Oscillation
stopped
period
Reset
Oscillation
stopped
period
Reset
Oscillation stabilization time
Operation
stopped
(17/f
(2
Operation
R
11
stopped
(17/f
)
Oscillates
/f
XP
R
to 2
)
Oscillates
(Internal oscillation clock)
16
/f
Operating mode
XP
(Internal oscillation clock)
)
Operating mode