M16C30P_07 Datasheet, PDF (185/317 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

M16C/30P Group
16. A/D Converter
A/D conversion rate selection
0 ^CKS2
1
1/2
1/2
0
1 ^CKS1
0
φAD
fAD
1/3 ₁
CKS0
ADTRG
VREF
AVSS
Software trigger ⁰
1
TRG
0
Resistor ladder
1
VCUT
Trigger
Successive conversion register _{ADCON1 register}
PM00
PM01
Port P0 group
AN0_0
AN0_1
AN0_2
AN0_3
AN0_4
AN0_5
AN0_6
AN0_7
ADCON0 register
AD0 register (16)
AD1 register (16)
AD2 register (16)
AD3 register (16)
AD4 register (16)
AD5 register (16)
AD6 register (16)
AD7 register (16)
Data bus high-order
Data bus low-order
Decoder for
A/D register
ADCON2 register
CH2 to CH0
=000b
=001b
=010b
=011b
=100b
=101b
=110b
=111b
Port P10 group
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
CH2 to CH0
=000b
=001b
=010b
=011b
=100b
=101b
=110b
=111b
Decoder for
channel selection
Vref
Comparator
VIN
ADGSEL1 to ADGSEL0=00b
OPA1 to OPA0=00b
PM01 to PM00=00b
ADGSEL1 to ADGSEL0=10b
OPA1 to OPA0=00b
PM01 to PM00=00b
ADGSEL1 to ADGSEL0=11b
OPA1 to OPA0=00b
ADGSEL1 to ADGSEL0=00b
OPA1 to OPA0=11b
PM01 to PM0=00b
ADGSEL1 to ADGSEL0=10b
OPA1 to OPA0=11b
ANEX0
ANEX1
OPA0=1
OPA1=1
Figure 16.1 A/D Converter Block Diagram
Rev.1.22 Mar 29, 2007 Page 169 of 291
REJ09B0179-0122
OPA1 to OPA0
=01b
OPA1=1