R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 35

• Manufacturer Part Number: R5F21133DFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/13 Group
Rev.1.20
REJ09B0111-0120
Figure 5.10 Operation Example of Voltage Detection Circuit
V
Internal reset signal
(D46 bit=1)
VC13 bit
VC27 bit
Voltage detection
interrupt request
(D46 bit=0)
Jan 27, 2006
CC
Sampling time : 4 cycles of sampling clock selected in DF0 bit to DF1 bit
The above applies to the following conditions.
• D4INT register D40 bit = 1 (voltage detection interrupt enabled)
• D4INT register D41 bit = 0 (digital filter enabled mode)
V
det
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5.0 V
Set to“1” by program (voltage
detection circuit enabled)
Sampling time
(3 to 4 clock)
Interrupt acknowledged
Sampling time
(3 to 4 clock)
fRING
Interrupt acknowledged
5.4 Voltage Detection Circuit
1
5.0 V
x 32