upd78f0134hgka1-9et-a Renesas Electronics Corporation., upd78f0134hgka1-9et-a Datasheet - Page 400

• Manufacturer Part Number: upd78f0134hgka1-9et-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

21.3 Registers Controlling Clock Monitor
(1) Clock monitor mode register (CLM)
400
The clock monitor is controlled by the clock monitor mode register (CLM).
Cautions 1. Once bit 0 (CLME) is set to 1, it cannot be cleared to 0 except by RESET input or the internal
This register sets the operation mode of the clock monitor.
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
RESET input clears this register to 00H.
Symbol
Address: FFA9H
CLM
2. If the reset signal is generated by the clock monitor, CLME is cleared to 0 and bit 1 (CLMRF)
CLME
reset signal.
of the reset control flag register (RESF) is set to 1.
7
0
0
1
After reset: 00H
Figure 21-2. Format of Clock Monitor Mode Register (CLM)
Disables clock monitor operation
Enables clock monitor operation
6
0
R/W
CHAPTER 21 CLOCK MONITOR
5
0
User’s Manual U16899EJ3V0UD
Enables/disables clock monitor operation
4
0
3
0
2
0
1
0
CLME
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