r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 87

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Figure 7.1
Figure 7.2
VCC
Voltage detection 0 circuit
VDSEL0 and
VDSEL1
VCC
Preliminary document
Specifications in this document are tentative and subject to change.
Voltage Detection Circuit Block Diagram
Voltage Monitor 0 Reset Generation Circuit Block Diagram
VDSEL0 and VDSEL1
VD1S0 to VD1S3
VW0C0: Bit in VW0C register
VCA25: Bit in VCA2 register
VDSEL0, VDSEL1: Bits in OFS register
Note:
(16 levels)
(4 levels)
selection
selection
selection
1. When the VCA25 bit is 0 (disabled), the voltage detection 0 signal will be high.
circuit
Level
Level
circuit
Level
Internal reference voltage
Internal reference
VCA25
+
-
voltage
Voltage
detection 0
signal
(1)
VCA26
VCA27
VCA25
+
+
+
-
-
-



Vdet2
Vdet0
Vdet1
Voltage monitor 0 reset generation circuit
VW2C3: Bit in VW2C register
VCA25, VCA26, VCA27: Bits in VCA2 register
VW1C3: Bit in VW1C register
VD1S0 to VD1S3: Bits in VD1LS register
VDSEL0, VDSEL1: Bits in OFS register
VW0C0
7. Voltage Detection Circuit
Voltage
monitor 0
reset signal
Voltage detection 0
Voltage detection 2
Voltage detection 1
VW1C register
VW2C register
VW2C3
VW1C3
b3
b3
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signal
signal
signal