MC912DG128A Motorola, MC912DG128A Datasheet - Page 324

• Manufacturer Part Number: MC912DG128A
• Description: Microcontrollers
• Manufacturer: Motorola

PORTAD0/PORTAD1 — Port AD Data Input Register
ADRx2H — A/D Converter Result Register 2
ADRx2L — A/D Converter Result Register 2
ADRx3H — A/D Converter Result Register 3
ADRx3L — A/D Converter Result Register 3
ADRx4H — A/D Converter Result Register 4
ADRx4L — A/D Converter Result Register 4
ADRx5H — A/D Converter Result Register 5
ADRx5L — A/D Converter Result Register 5
ADRx6H — A/D Converter Result Register 6
ADRx6L — A/D Converter Result Register 6
ADRx7H — A/D Converter Result Register 7
ADRx7L — A/D Converter Result Register 7
ADRx0H — A/D Converter Result Register 0
ADRx0L — A/D Converter Result Register 0
ADRx1H — A/D Converter Result Register 1
ADRx1L — A/D Converter Result Register 1
Analog-To-Digital Converter (ATD)
MC68HC912DT128A Rev 2.0
324
ADRxxH
ADRxxL
RESET:
RESET:
PADx7
Bit 15
Bit 7
Bit 7
0
-
PADx6
Bit 6
6
6
0
-
PADx[7:0] — Port AD Data Input Bits
ADRxxH[15:8], ADRxxL[7:0] — ATD Conversion result
After reset these bits reflect the state of the input pins.
May be used for general-purpose digital input. When the software
reads PORTAD, it obtains the digital levels that appear on the
corresponding port AD pins. Pins with signals not meeting V
specifications will have an indeterminate value. Writes to this register
have no meaning at any time.
The reset condition for these registers is undefined.
These bits contain the left justified, unsigned result from the ATD
conversion. The channel from which this result was obtained is
dependent on the conversion mode selected. These registers are
always read-only in normal mode.
PADx5
5
5
0
0
-
Analog-To-Digital Converter (ATD)
PADx4
4
4
0
0
-
PADx3
3
3
0
0
-
PADx2
2
2
0
0
-
PADx1
1
1
0
0
-
PADx0
Bit 8
Bit 0
0
0
-
$007A/$01FA
$007B/$01FB
$007C/$01FC
$007D/$01FD
$006F/$01EF
$007E/$01FE
$007F/$01FF
$0070/$01F0
$0071/$01F1
$0072/$01F2
$0073/$01F3
$0074/$01F4
$0075/$01F5
$0076/$01F6
$0077/$01F7
$0078/$01F8
$0079/$01F9
MOTOROLA
IL
or V
14-atd
IH