RX610 Group
23. A/D Converter
R01UH0032EJ0120 Rev.1.20
Page 776 of 1006
Feb 20, 2013
Synchronous
circuit
Module data bus
Control circuit
Internal data bus
Comparator
+
AD0.ADDRA
AD0.ADDRB
AD0.ADDRC
AD0.ADDRD
AD0.ADCSR
AD0.ADCR
AN0
AN1
AN2
AN3
Successive
approximation
register
10-bit
D/A
AVCC
Multiplexer
Sample-and-
hold circuit
Compare-match A signal from TMR0
ADI0 interrupt signal
AD0.ADDRD:
A/D data register D
VREFH
VREFL
ADTRG0#
AD0.ADDRA:
A/D data register A
AD0.ADDRB:
A/D data register B
AD0.ADDRC:
A/D data register C
AD0.ADDPR
AD0.ADSSTR
Compare-match/input-capture A signals
from TPU0 to TPU5, TPU6 to TPU11
Compare-match/input-capture A
signal from TPU0
AD0.ADCR:
A/D control register
AD0.ADDPR:
ADDRy format select
Clock
selec ion
PCLK
PCLK/2
PCLK/4
ADCLK
Internal clock
PCLK/8
AD0.ADCSR:
A/D control/status register
AD0.ADSSTR:
A/D sampling state register
[Legend]
Bus interface
Figure 23.1 Block Diagram of A/D Converter Unit 0 (AD0)