mc68hc908qf4 Freescale Semiconductor, Inc, mc68hc908qf4 Datasheet - Page 52

• Manufacturer Part Number: mc68hc908qf4
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Configuration Register (CONFIG)
Data Sheet
52
NOTE:
IRQPUD — IRQ Pin Pullup Control Bit
IRQEN — IRQ Pin Function Selection Bit
OSCOPT1 and OSCOPT0 — Selection Bits for Oscillator Option
RSTEN — RST Pin Function Selection
The RSTEN bit is cleared by a power-on reset (POR) only. Other resets will leave
this bit unaffected.
COPRS (Out of STOP Mode) — COP Reset Period Selection Bit
COPRS (In STOP Mode) — Auto Wakeup Period Selection Bit
LVISTOP — LVI Enable in Stop Mode Bit
Address: $001F
(0, 0) Internal oscillator
(0, 1) External oscillator
(1, 0) External RC oscillator
(1, 1) External XTAL oscillator
When the LVIPWRD bit is clear, setting the LVISTOP bit enables the LVI to
operate during stop mode. Reset clears LVISTOP.
Reset:
POR:
Read:
Write:
1 = Internal pullup is disconnected
0 = Internal pullup is connected between IRQ pin and V
1 = Interrupt request function active in pin
0 = Interrupt request function inactive in pin
1 = Reset function active in pin
0 = Reset function inactive in pin
1 = COP reset short cycle = (2
0 = COP reset long cycle = (2
1 = Auto wakeup short cycle = (2
0 = Auto wakeup long cycle = (2
1 = LVI enabled during stop mode
0 = LVI disabled during stop mode
Freescale Semiconductor, Inc.
For More Information On This Product,
U = Unaffected
COPRS
Bit 7
0
0
Figure 5-2. Configuration Register 1 (CONFIG1)
Configuration Register (CONFIG)
Go to: www.freescale.com
LVISTOP
6
0
0
LVIRSTD
5
0
0
18
LVIPWRD LVDLVR
13
– 2
14
– 2
9
4
0
0
) × INTRCOSC
) × INTRCOSC
4
4
) × BUSCLKX4
) × BUSCLKX4
U
3
0
SSREC
2
0
0
MC68HC908QF4 — Rev. 1.0
DD
STOP
1
0
0
MOTOROLA
COPD
Bit 0
0
0