MC68HC908AP64_07 FREESCALE [Freescale Semiconductor, Inc], MC68HC908AP64_07 Datasheet - Page 52

• Manufacturer Part Number: MC68HC908AP64_07
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Configuration & Mask Option Registers (CONFIG & MOR)
3.4 Configuration Register 2 (CONFIG2)
STOP_ICLKDIS — Internal Oscillator Stop Mode Disable
STOP_RCLKEN — RC Oscillator Stop Mode Enable Bit
STOP_XCLKEN — X-tal Oscillator Stop Mode Enable Bit
OSCCLK1, OSCCLK0 — Oscillator Output Control Bits
52
STOP_ICLKDIS disables the internal oscillator during stop mode. Setting the STOP_ICLKDIS bit
disables the oscillator during stop mode. (See
Reset clears this bit.
STOP_RCLKEN enables the RC oscillator to continue operating during stop mode. Setting the
STOP_RCLKEN bit allows the oscillator to operate continuously even during stop mode. This is useful
for driving the timebase module to allow it to generate periodic wake up while in stop mode. (See
Chapter 5 Oscillator
Reset clears this bit.
STOP_XCLKEN enables the crystal (x-tal) oscillator to continue operating during stop mode. Setting
the STOP_XCLKEN bit allows the x-tal oscillator to operate continuously even during stop mode. This
is useful for driving the timebase module to allow it to generate periodic wake up while in stop mode.
(See
OSCCLK1 and OSCCLK0 select which oscillator output to be driven out as OSCCLK to the timebase
module (TBM). Reset clears these two bits.
1 = Internal oscillator disabled during stop mode
0 = Internal oscillator enabled to operate during stop mode
1 = RC oscillator enabled to operate during stop mode
0 = RC oscillator disabled during stop mode
1 = X-tal oscillator enabled to operate during stop mode
0 = X-tal oscillator disabled during stop mode
Chapter 5 Oscillator
Address:
Reset:
Read:
Write:
OSCCLK1
ICLKDIS
STOP_
$001D
(OSC).)
0
0
1
1
Bit 7
0
Figure 3-3. Configuration Register 2 (CONFIG2)
(OSC).) Reset clears this bit.
RCLKEN
STOP_
6
0
MC68HC908AP Family Data Sheet, Rev. 4
XCLKEN
STOP_
OSCCLK0
5
0
0
1
0
1
OSCCLK1 OSCCLK0
Chapter 5 Oscillator
4
0
3
0
Timebase Clock Source
Internal oscillator (ICLK)
RC oscillator (RCCLK)
X-tal oscillator (XTAL)
2
0
0
(OSC).)
Not used
1
0
0
Freescale Semiconductor
SCIBD-
SRC
Bit 0
0