M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 153

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M30622M4

Manufacturer Part Number
M30622M4
Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Manufacturer
MITSUBISHI [Mitsubishi Electric Semiconductor]
Datasheet

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A-D Converter
Figure 1.20.1. Block diagram of A-D converter
ANEX0
ANEX1
AV
AN
AN
AN
AN
AN
AN
AN
AN
V
REF
0
1
2
3
4
5
6
7
SS
(03C1
(03C9
(03C3
(03C5
(03C7
(03CB
(03CD
(03CF
Addresses
16
16
16
16
16
16
16
16
VCUT=0
VCUT=1
, 03C0
, 03C2
, 03C4
, 03C8
, 03C6
, 03CA
, 03CE
, 03CC
f
16
16
16
16
16
AD
16
16
16
)
)
)
)
)
)
)
)
Successive conversion register
Data bus high-order
Data bus low-order
A-D register 5(16)
A-D register 6(16)
A-D register 7(16)
A-D register 0(16)
A-D register 1(16)
A-D register 2(16)
A-D register 3(16)
A-D register 4(16)
1/2
Resistor ladder
CH2,CH1,CH0=001
CH2,CH1,CH0=010
CH2,CH1,CH0=011
CH2,CH1,CH0=100
CH2,CH1,CH0=101
CH2,CH1,CH0=110
CH2,CH1,CH0=111
CH2,CH1,CH0=000
1/2
A-D control register 1 (address 03D7
A-D control register 0 (address 03D6
OPA0=1
OPA1=1
CKS0=0
CKS0=1
OPA1,OPA0=1,1
CKS1=0
OPA1,OPA0=0,1
CKS1=1
OPA1,OPA0=0,0
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Decoder
16
16
)
)
A-D conversion rate
selection
V
V
OPA1, OPA0
0 0 : Normal operation
0 1 : ANEX0
1 0 : ANEX1
1 1 : External op-amp mode
ref
IN
Mitsubishi microcomputers
Comparator
M16C / 62 Group
AD
153

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