HD404374 Datasheet, PDF (107/161 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip A/D Converter

HD404374/HD404384/HD404389/HD404082/HD404084 Series
A/D data register-lower (ADRL: $029)
Bit
Read/Write
Initial value on reset
Bit name
3
R
1
ADRL3
2
R
1
ADRL2
1
—
—
Not used
Note: * Should be written with 1 with the emulator.
Figure 67 A/D Data Register-Lower (ADRL)
0
—
—*
Not used
A/D data register-middle (ADRM: $02A)
Bit
Read/Write
Initial value on reset
Bit name
3
R
1
ADRM3
2
R
1
ADRM2
1
R
1
ADRM1
0
R
1
ADRM0
Figure 68 A/D Data Register-Middle (ADRM)
A/D data register-upper (ADRU: $02B)
Bit
Read/Write
Initial value on reset
Bit name
3
R
0
ADRU3
2
R
1
ADRU2
1
R
1
ADRU1
0
R
1
ADRU0
Figure 69 A/D Data Register-Upper (ADRU)
Module standby register 2 (MSR2: $00E):
Writing 1 to bit 1 of module standby register 2 stops the supply of the system clock to the A/D module and
cuts the current (I_AD) flowing in the ladder resistor.
Rev.5.00, Sep.11.2003, page 107 of 161