mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 308

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Analog-to-Digital Converter
PORTAD0/PORTAD1 — Port AD Data Input Register
Technical Data
308
RESET:
PADx7
Bit 7
-
PADx6
6
-
RST — Module Reset Bit
TSTOUT — Multiplex Output of TST[3:0] (Factory Use)
TST[3:0] — Test Bits 3 to 0 (Reserved)
PADx[7:0] — Port AD Data Input Bits
Freescale Semiconductor, Inc.
When set, this bit causes all registers and activity in the module to
assume the same state as out of power-on reset (except for ADPU bit
in ATDCTL2, which remains set, allowing the ATD module to remain
enabled).
Selects one of 16 reserved factory testing modes
After reset these bits reflect the state of the input pins.
May be used for general-purpose digital input. When the software
reads PORTADx, 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.
For More Information On This Product,
PADx5
5
-
Analog-to-Digital Converter
Go to: www.freescale.com
PADx4
4
-
PADx3
3
-
PADx2
2
-
PADx1
MC68HC912DG128 — Rev 3.0
1
-
PADx0
Bit 0
-
$006F/$01EF
MOTOROLA
IL
or V
IH