Datasheet

568
16.1.2 Block Diagram
Figure 16.1 is the block diagram of the mid-speed A/D converter.
AV
CC
, AVref and AV
SS
pins of both A/D are common in LSI.
A/D0
+
−
+
−
AVcc
AV
ref
AV
ss
AN0
AN1
AN2
AN3
A/D1
AV
cc
AV
ref
AV
ss
AN4
AN5
AN6
AN7
Interrupt
signal ADI0
(DTC)
Interrupt
signal ADI1
(DMAC)
Module data bus
Module data bus
(Only with 144 pin)
(Only with 144 pin)
10-bit D/A
Continuous comparison register ADDRA0 ADDRB0 ADDRC0 ADDRD0 ADCSR0 ADCR0
Bus interface
Analog multiplexer
Continuous comparison register
ADDRA1 ADDRB1 ADDRC1 ADDRD1 ADCSR1 ADCR1
Bus interface
10-bit D/A
Analog multiplexer
Sample & hold circuit
Comparator
Control circuit
Sample & hold circuit
Comparator
Control circuit
Port
trigger
MTU
trigger
Logical
sum
Figure 16.1 Mid-Speed A/D Converter Block Diagram