NEC PD78214 User 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