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MC908QL3C Datasheet(PDF) 61 Page - Motorola, Inc

No. de Pieza. MC908QL3C
Descripción  Microcontrollers
Descarga  222 Pages
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Fabricante  MOTOROLA [Motorola, Inc]
Página de inicio  http://www.freescale.com
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MC908QL3C Datasheet(HTML) 61 Page - Motorola, Inc

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Registers
MC68HC908QL4 • MC68HC908QL3 • MC68HC908QL2 Data Sheet, Rev. 4
Freescale Semiconductor
61
AWUIE — Auto Wakeup Interrupt Enable Bit
This read/write bit enables the auto wakeup interrupt input to latch interrupt requests. Reset clears
AWUIE.
1 = Auto wakeup enabled as interrupt input
0 = Auto wakeup not enabled as interrupt input
NOTE
KBIE5–KBIE0 bits are not used in conjuction with the auto wakeup feature.
For a description of these bits, see 9.8.2 Keyboard Interrupt Enable
Register (KBIER).
4.6.4 Configuration Register 2
The configuration register 2 (CONFIG2), is used to allow the bus clock source to run in STOP. In this case,
the clock, BUSCLKX4 will be used to drive the AWU request generator.
OSCENINSTOP — Oscillator Enable in Stop Mode Bit
OSCENINSTOP, when set, will allow the bus clock source (BUSCLKX4) to generate clocks for the
AWU in stop mode. See 11.8.1 Oscillator Status and Control Register for information on enabling the
external clock sources.
1 = Oscillator enabled to operate during stop mode
0 = Oscillator disabled during stop mode
NOTE
IRQPUD, IRQEN, and RSTEN bits are not used in conjuction with the auto
wakeup feature. For a description of these bits, see Chapter 5
Configuration Register (CONFIG).
4.6.5 Configuration Register 1
The configuration register 1 (CONFIG1), is used to select the period for the AWU. The timeout will be
based on the COPRS bit along with the clock source for the AWU.
Bit 7
6543
2
1
Bit 0
Read:
IRQPUD
IRQEN
RRR
R
OSCENINSTOP
RSTEN
Write:
Reset:
00000
0
0
0
Figure 4-5. Configuration Register 2 (CONFIG2)
Bit 7
654321
Bit 0
Read:
COPRS
LVISTOP
LVIRSTD
LVIPWRD
LVITRIP
SSREC
STOP
COPD
Write:
Reset:
POR:
0
0
0
0
0
0
0
0
U
0
0
0
0
0
0
0
U = Unaffected
Figure 4-6. Configuration Register 1 (CONFIG1)


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