154
CHAPTER 12 A/D CONVERTER
Preliminary User’s Manual U14581EJ3V0UM00
Figure 12-1. A/D Converter Block Diagram
ANI0/P10
ANI1/P11
ANI2/P12
ANI3/P13
ANI4/P14
Selector
Sample & hold circuit
Voltage comparator
Successive
approximation
register (SAR)
Controller
3
A/D conversion result
register (ADCR1)
Tap selector
AV
REF
AV
SS
INTAD
A/D converter mode
register (ADM1)
Analog input channel
specification register (ADS1)
Internal bus
ADS12 ADS11 ADS10
ADCS1 FR12 FR11 FR10
Series resistor string
Figure 12-2. Power-Fail Detection Function Block Diagram
ANI0/P10
ANI1/P11
ANI2/P12
ANI3/P13
ANI4/P14
Multiplexer
Selector
A/D converter
Internal bus
Power-fail compare
mode register (PFM)
Comparator
PFEN PFCM
Power-fail compare
threshold value
register (PFT)
INTAD
PFEN
PFCM
Summary of Contents for mPD780852 Series
Page 2: ...2 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 8: ...8 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 12: ...12 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 26: ...26 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 46: ...46 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 74: ...74 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 90: ...90 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 100: ...100 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 136: ...136 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 142: ...142 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 186: ...186 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 222: ...222 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 230: ...230 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 240: ...240 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 262: ...262 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 296: ...296 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 304: ...304 Preliminary User s Manual U14581EJ3V0UM00 MEMO...
Page 314: ...314 Preliminary User s Manual U14581EJ3V0UM00 MEMO...