upd78f0114m6gb-8es Renesas Electronics Corporation., upd78f0114m6gb-8es Datasheet - Page 359
upd78f0114m6gb-8es
Manufacturer Part Number
upd78f0114m6gb-8es
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0114M6GB-8ES.pdf
(534 pages)
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19.4 Operation of Clock Monitor
This section explains the functions of the clock monitor. The monitor start and stop conditions are as follows.
<Monitor start condition>
<Monitor stop condition>
Note The Ring-OSC clock is stopped only when the “Ring-OSC can be stopped by software” is selected by a
The clock monitor timing is as shown in Figure 19-3.
CPU Operation Clock
X1 input clock
Ring-OSC clock
When bit 0 (CLME) of the clock monitor mode register (CLM) is set to operation enabled (1).
• Reset is released and during the oscillation stabilization time
• In STOP mode and during the oscillation stabilization time
• When the X1 input clock is stopped by software (MSTOP = 1 or MCC = 1) and during the oscillation
• When the Ring-OSC clock is stopped
Remark MSTOP: Bit 7 of main OSC control register (MOC)
stabilization time
mask option. If “Ring-OSC cannot be stopped” is selected, the Ring-OSC clock cannot be stopped.
MCC:
Table 19-2. Operation Status of Clock Monitor (When CLME = 1)
STOP mode
RESET input
Normal operation mode
HALT mode
STOP mode
RESET input
Normal operation mode
HALT mode
Bit 7 of processor clock control register (PCC)
Operation Mode
CHAPTER 19 CLOCK MONITOR
User’s Manual U16227EJ3V0UD
Stopped
Oscillating
Stopped
Oscillating
Stopped
X1 Input Clock Status
Oscillating
Stopped
Oscillating
Stopped
Oscillating
Stopped
Oscillating
Ring-OSC Clock Status
Note
Note
Note
Stopped
Operating
Stopped
Stopped
Operating
Stopped
Clock Monitor Status
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