mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 226

• Manufacturer Part Number: mc68hc908sr12
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Analog Module
14.7 Analog Module I/O Registers
14.7.1 Analog Module Control Register (AMCR)
Data Sheet
226
Address:
Three registers control and monitor the operation of the analog module:
The analog module control register (AMCR):
PWR1–PWR0 — Analog Module Power Control Bits
Reset:
Read:
Write:
PWR1
•
•
•
•
•
•
•
These read/write bits power on/off the different functions within the
analog module. Reset clears the PWR1 and PWR0 bits.
0
0
1
1
Analog module control register (AMCR) — $000E
Analog module gain control register (AMGCR) — $000F
Analog module status and control register (AMSCR) — $0010
Powers on and off analog sub-modules
Selects the input signal to the two-stage amplifier
Enables analog module interrupt requests
Offset adjustment for calibration
Figure 14-3. Analog Module Control Register (AMCR)
$000E
PWR1
Bit 7
0
PWR0
Table 14-1. Analog Module Power Control
0
1
0
1
PWR0
Analog Module
6
0
Current Detect
OPCH1
Module
5
0
Off
Off
On
On
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
OPCH0
4
0
AMIEN
Temperature
3
0
Sensor
Off
Off
Off
On
DO2
Freescale Semiconductor
2
0
DO1
Two-Stage
1
0
Amplifier
Off
Off
On
On
DO0
Bit 0
0