Section 15 A/D Converter
Rev. 3.00 Mar. 14, 2006 Page 548 of 804
REJ09B0104-0300
Module data bus
Control circuit
Internal
data bus
10-bit D/A
Comparator
+
–
Sample-and-
hold circuit
ADI0 interrupt
signal
Bus interface
AV
CC
0
AV
SS
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
ADTRG0
Conversion start
trigger from the TPU
Successive approximation
register
Multiplexer
[Legend]
ADCR_0:
A/D control register_0
ADCSR_0: A/D control/status register_0
ADDRA_0: A/D data register A_0
ADDRB_0: A/D data register B_0
ADDRC_0: A/D data register C_0
ADDRD_0: A/D data register D_0
ADDRE_0: A/D data register E_0
ADDRF_0: A/D data register F_0
ADDRG_0: A/D data register G_0
ADDRH_0: A/D data register H_0
ADDRA_0
ADDRB_0
ADDRC_0
ADDRD_0
ADDRE_0
ADDRF_0
ADDRG_0
ADDRH_0
ADCSR_0
ADCR_0
Figure 15.1 Block Diagram of A/D Converter (Unit 0/AD_0)
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