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R8C/15 датащи(PDF) 39 Page - Renesas Technology Corp

номер детали R8C/15
подробное описание детали  16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / R8C/Tiny SERIES
PDF  277 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R8C/15 датащи(HTML) 39 Page - Renesas Technology Corp

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R8C/14 Group, R8C/15 Group
6. Voltage Detection Circuit
Rev.2.10
Jan 19, 2006
Page 27 of 253
REJ09B0164-0210
Figure 6.3
Block Diagram of Voltage Monitor 2 Interrupt / Reset Generation Circuit
+
-
1/2
1/2
1/2
Voltage Detection 2 Circuit
VCA27
VCC
Internal
Reference
voltage
VCA13
Noise Filter
(Filter Width: 200ns)
Voltage detection 2 signal
is held “H” when VCA27 bit
is set to “0” (disabled)
Voltage
Detection
2 signal
Digital
Filter
fRING-S
VW2F1 to VW2F0
=00b
=01b
=10b
=11b
VW2C1
VW2C2 bit is set to “0” (not detected)
by writing “0” by program.
When VCA27 bit is set to “0” (voltage
detection 2 circuit disabled), VW2C2
bit is set to “0”
VW2C2
VW2C7
VW2C3
Watchdog Timer Block
Watchdog Timer
Underflow Signal
This bit is set to “0” (not detected) by writing
“0” by program.
VW2C0
VW2C6
Non-Maskable
Interrupt Signal
Voltage Monitor 2
Interrupt Signal
Watchdog
Timer Interrupt
Signal
Oscillation Stop
Detection
Interrupt Signal
Voltage Monitor 2 Interrupt / Reset Generation Circuit
VW2C0 to VW2C3, VW2F2, VW2F1, VW2C6, VW2C7: Bits in VW2C register
VCA13: Bit in VCA1 register
VCA27: Bit in VCA2 register
Voltage
Monitor 2
Reset
Signal



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