![](http://datasheet.mmic.net.cn/30000/M30260M3A-XXXGP-U5_datasheet_2358673/M30260M3A-XXXGP-U5_190.png)
14. A/D Converter
page 176
8
2
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Figure 14.1 A/D Converter Block Diagram
=0002
=0012
=0102
=0112
=1002
=1012
=1102
=1112
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN30
AN31
AN32
Vref
VIN
CH2 to CH0
Decoder
for channel
selection
A/D register 0(16)
Data bus low-order
VREF
AVSS
VCUT=0
VCUT=1
Data bus high-order
Port P10 group
Port P9 group
ADGSEL1 to ADGSEL0=012
ADGSEL1 to ADGSEL0=002
AN24
ADGSEL1 to ADGSEL0=112
fAD
CKS0=1
CKS0=0
CKS1=1
CKS1=0
1/3
CKS2=0
CKS2=1
1/2
AD
A/D conversion rate
selection
(03C116 to 03C016)
(03C316 to 03C216)
(03C516 to 03C416)
(03C716 to 03C616)
(03C916 to 03C816)
(03CB16 to 03CA16
(03CD16 to 03CC16)
(03CF16 to 03CE16)
Resistor ladder
Successive conversion register
ADCON0 register
(address 03D616)
ADCON1 register
(address 03D716)
Comparator 0
Addresses
Decoder
for A/D register
A/D register 1(16)
A/D register 2(16)
A/D register 3(16)
A/D register 4(16)
A/D register 5(16)
A/D register 6(16)
A/D register 7(16)
ADCON2 register
(address 03D416)
Port P9 group
=0002
=0012
=0102
=1002
CH2 to CH0
SSE = 1
CH2 to CH0=0012
Comparator 1
ADGSEL1 to ADGSEL0=002
ADGSEL1 to ADGSEL0=012
VIN1
Note 1: AN32 and AN24 are available for only 48-pin package.
(Note 1)