Hitachi SH7032 - Block Diagram

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14.1.2 Block Diagram
Figure 14.1 shows a block diagram of the A/D converter.
10-bit
D/A
ADDRA ADDRB
ADDRC ADDRD
Bus interface
Module data bus
Analog
multi-
plexer
Control circuit
Successive approxi-
mations register
+
–
Comparator
Sample-and-
hold circuit
ADI
interrupt

signal
V
ref
AV
SS
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
φ/8
φ/16
ADCSR
ADCR
AV
CC
A/D converter
Internal
data bus
ADTRG
ADCR: A/D control register
ADCSR: A/D control/status register
ADDRA: A/D data register A
ADDRB: A/D data register B
ADDRC: A/D data register C
ADDRD: A/D data register D
Figure 14.1 Block Diagram of A/D Converter