Filter
Top Products
Section 24 A/D Converter
Page 1260 of 2108 R01UH0134EJ0400 Rev. 4.00
Sep 24, 2014
SH7262 Group, SH7264 Group
Figure 24.1 shows a block diagram of the A/D converter.
10-bit
D/A
Bus interface
Module data bus
Analog
multiplexer
Control circuit
Successive-
approximation
register
+
–
Comparator
Sample-and-hold circuit
ADI
interrupt
signal
AV
SS
AN4
AN5
AN6
AN7
AN0*
AN1*
AN2*
AN3*
ADCSR
AV
CC
AV
ref
ADCSR:
ADDRA:
ADDRB:
ADDRC:
ADDRD:
ADDRE:
ADDRF:
ADDRG:
ADDRH:
A/D control/status register
A/D data register A
A/D data register B
A/D data register C
A/D data register D
A/D data register E
A/D data register F
A/D data register G
A/D data register H
Peripheral bus
ADTRG,
conversion start
trigger from
multi-function timer
pulse unit 2
ADDRE
ADDRF
ADDRG
ADDRH
ADDRA
ADDRB
ADDRC
ADDRD
[Legend]
A/D converter
Note:
* Only AN0 to AN3 can be used in the SH7262 Group.
Figure 24.1 Block Diagram of A/D Converter