MC68HC908GZ8 Datasheet, PDF (104/344 Pages) Motorola, Inc – Microcontrollers

Configuration Register (CONFIG)
Address: $001E
Bit 7
6
5
4
Read: 0
0
0
0
Write:
Reset: 0
0
0
0
Note: MSCANEN is only reset via POR (power-on reset).
= Unimplemented
3
2
1
Bit 0
MSCAN-EN
TMCLKSEL
OSCEN-IN-
STOP
SCIBDSRC
See note
0
0
1
Figure 8-1. Configuration Register 2 (CONFIG2)
Address: $001F
Bit 7
6
5
4
Read:
Write: ^{COPRS LVISTOP LVIRSTD LVIPWRD}
Reset: 0
0
0
0
Note: LVI5OR3 is only reset via POR (power-on reset).
3
LVI5OR3
See note
2
SSREC
0
1
STOP
0
Figure 8-2. Configuration Register 1 (CONFIG1)
Bit 0
COPD
0
NOTE:
MSCANEN— MSCAN08 Enable Bit
Setting the MSCANEN enables the MSCAN08 module and allows the MSCAN08
to use the PTC0/PTC1 pins. See Section 16. MSCAN08 Controller
(MSCAN08) for a more detailed description of the MSCAN08 operation.
1 = Enables MSCAN08 module
0 = Disables the MSCAN08 module
The MSCANEN bit is cleared by a power-on reset (POR) only. Other resets will
leave this bit unaffected.
TMCLKSEL— Timebase Clock Select Bit
TMCLKSEL enables an extra divide-by-128 prescaler in the timebase module.
Setting this bit enables the extra prescaler and clearing this bit disables it. See
Section 7. Clock Generator Module (CGM) for a more detailed description of
the external clock operation.
1 = Enables extra divide-by-128 prescaler in timebase module
0 = Disables extra divide-by-128 prescaler in timebase module
OSCENINSTOP — Oscillator Enable In Stop Mode Bit
OSCENINSTOP, when set, will enable the oscillator to continue to generate
clocks in stop mode. See Section 7. Clock Generator Module (CGM). This
function is used to keep the timebase running while the reset of the MCU stops.
See Section 22. Timebase Module (TBM). When clear, oscillator will cease to
generate clocks while in stop mode. The default state for this option is clear,
disabling the oscillator in stop mode.
1 = Oscillator enabled to operate during stop mode
0 = Oscillator disabled during stop mode (default)
Data Sheet
104
Configuration Register (CONFIG)
MC68HC908GZ8
Freescale Semiconductor