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MC68HC908AP16CFB Datasheet(PDF) 131 Page - Motorola, Inc

Part # MC68HC908AP16CFB
Description  Microcontrollers
PDF  440 Pages
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC68HC908AP16CFB Datasheet(HTML) 131 Page - Motorola, Inc

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System Integration Module (SIM)
SIM Bus Clock Control and Generation
MC68HC908AP Family — Rev. 2.5
Data Sheet
MOTOROLA
131
9.2 SIM Bus Clock Control and Generation
The bus clock generator provides system clock signals for the CPU and
peripherals on the MCU. The system clocks are generated from an
incoming clock, CGMOUT, as shown in Figure 9-3. This clock can come
from either an external oscillator or from the on-chip PLL. (See Section
8. Clock Generator Module (CGM).)
Addr.
Register Name
Bit 7
654321
Bit 0
$FE00
SIM Break Status Register
(SBSR)
Read:
RRRRRR
SBSW
R
Write:
NOTE
Reset:
00000000
Note: Writing a logic 0 clears SBSW.
$FE01
SIM Reset Status Register
(SRSR)
Read:
POR
PIN
COP
ILOP
ILAD
MODRST
LVI
0
Write:
POR:
10000000
$FE03
SIM Break Flag Control
Register (SBFCR)
Read:
BCFE
RRRRRRR
Write:
Reset:
0
$FE04
Interrupt Status Register 1
(INT1)
Read:
IF6
IF5
IF4
IF3
IF2
IF1
0
0
Write:
RRRRRRRR
Reset:
00000000
$FE05
Interrupt Status Register 2
(INT2)
Read:
IF14
IF13
IF12
IF11
IF10
IF9
IF8
IF7
Write:
RRRRRRRR
Reset:
00000000
$FE06
Interrupt Status Register 3
(INT3)
Read:
0
IF21
IF20
IF19
IF18
IF17
IF16
IF15
Write:
RRRRRRRR
Reset:
00000000
= Unimplemented
Figure 9-2. SIM I/O Register Summary
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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