NEC PD78214 - Manual (Page 255)

226
µ
PD78214 Sub-Series
Fig. 8-1 A/D Converter Configuration
Successive approximation register (SAR)
Sample and hold circuit
Series resistor string
Input selector
Tap selector
R/2 R/2
A/D converter mode register (ADM)
Voltage comparator
AV
SS
R
AV
REF
Selector
INTAD
INTP5
RESET
Interrupt request
8 8
8
Trigger enable
Conversion trigger
Control circuit
Edge detector
Internal bus
A/D conversion result register (ADCR)
INTP5
AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7