XC912BC32CFU8 Motorola Semiconductor Products, XC912BC32CFU8 Datasheet - Page 311

• Manufacturer Part Number: XC912BC32CFU8
• Description: M68HC12B Family Data Sheet
• Manufacturer: Motorola Semiconductor Products

17.3.9 Port AD Data Input Register
17.3.10 ATD Result Registers
M68HC12B Family — Rev. 8.0
MOTOROLA
ADRx0H:
ADRx1H:
ADRx2H:
ADRx3H:
ADRx4H:
ADRx5H:
ADRx6H:
ADRx7H:
Read: Anytime
Write: Has no meaning or effect
PAD7–PAD0 — Port AD Data Input Bits
Reset:
Read:
Write:
After reset, these bits reflect the state of the input pins.
PAD7–PAD0 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
indeterminate value.
Address: $006F
Reset:
Read:
Write:
$0070
$0072
$0074
$0076
$0078
$007A
$007C
$007E
Bit 15
Bit 7
PAD7
Bit 7
Figure 17-10. Port AD Data Input Register (PORTAD)
Analog-to-Digital Converter (ATD)
= Unimplemented
Figure 17-11. ATD Result Registers High
Bit 14
= Unimplemented
6
PAD6
6
Bit 13
5
PAD5
After reset, reflect the state of the inputs pins
5
Bit 12
4
PAD4
Undefined
4
Bit 11
IL
3
PAD3
or V
3
Analog-to-Digital Converter (ATD)
IH
Bit 10
specifications will have an
2
PAD2
2
Bit 9
1
PAD1
1
ATD Registers
Data Sheet
Bit 0
Bit 8
PAD0
Bit 0
311