M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
A-D Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
A-D control register 1 (AD1) [Address 00EE16
]
B
Name
Functions
After reset R W
0
to
2
Analog input pin selection
bits
(ADM0 to ADM2)
b2 b1 b0
0
R W
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0 : A-D1
1 : A-D2
0 : A-D3
1 : A-D4
0 : A-D5
1 : A-D6
0 : Do not set
1 : Do not set
3
4
This bit is a write disable bit.
When this bit is read out, the value is “0.”
0
—
—
—
R
0: Input voltage < reference voltage
1: Input voltage > reference voltage
Storage bit of comparison
result (ADM4)
Indeterminate R
5
to
7
Nothing is assigned. This bits are write disable bits.
When these bits are read out, the values are “0.”
0
R
Fig. 8.8.2 A-D Control Register 1
A-D Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
A-D control register 2 (AD2) [Address 00EF16
]
B
Name
Functions
After reset
0
R W
D-A converter set bits
(ADC0 to ADC5)
b5 b4 b3 b2 b1 b0
R W
0
to
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0 : 1/128Vcc
1 : 3/128Vcc
0 : 5/128Vcc
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1 : 123/128Vcc
0 : 125/128Vcc
1 : 127/128Vcc
Nothing is assigned. These bits are write disable bits.
When these bits are reed out, the values are “ 0.”
0
R —
6, 7
Fig. 8.8.3 A-D Control Register 2
Rev.1.00 Oct 01, 2002 page 50 of 110
REJ03B0134-0100Z
RENESAS [ RENESAS TECHNOLOGY CORP ]
