HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 848

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 21 A/D Converter
21.1.1
Figure 21.1 shows a block diagram of the A/D converter.
AVcc and AVss for both A/D modules are common pins in the chip.
Rev. 4.00 Sep. 14, 2005 Page 798 of 982
REJ09B0023-0400
AV
AV
AV
AV
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
Block Diagram
CC
CC
SS
SS
[Legend]
ADCSR 0:
ADDRA 0:
ADDRB 0:
ADDRC 0:
ADDRD 0:
ADCR:
A/D converter 0
A/D converter 1
Analog
Analog
plecer
plecer
multi
multi
A/D 0 control/status register
A/D 0 data register A
A/D 0 data register B
A/D 0 data register C
A/D 0 data register D
A/D0, A/D1 control register
Sample and-
hold circuit
10 bit
10 bit
Figure 21.1 Block Diagram of A/D Converter
A/D
A/D
Sample and-
hold circuit
Comparator
Comparator
+
–
+
–
Peripheral data bus
Peripheral data bus
Control circuit
Control circuit
ADCSR 1:
ADDRA 1:
ADDRB 1:
ADDRC 1:
ADDRD 1:
A/D 1 control/status register
A/D 1 data register A
A/D 1 data register B
A/D 1 data register C
A/D 1 data register D
data bus
data bus
Internal
Internal
ADI1
interrupt
signal
ADI0
interrupt
signal
trigger
MTU
ADCR