mc68hc05pv8a Freescale Semiconductor, Inc, mc68hc05pv8a Datasheet - Page 171
mc68hc05pv8a
Manufacturer Part Number
mc68hc05pv8a
Description
Mc68hc05pv8a Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC05PV8A.pdf
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15.3.1 System Control Register
MC68HC(8)05PV8/A — Rev. 1.9
The following paragraphs describe the FPIE and FPICLK bit function of
the system control register.
FPIE – Fast Peripheral Interface Enable
FPICLK – Fast Peripheral Clock
$000A
Reset:
Read:
Write:
If this bit is set the fast peripheral interface is enabled. PA0–3 and
PB0–3 are no longer available as I/Os.
If this bit is set, the FPI clocks are free running
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = Fast peripheral interface enabled
0 = Fast peripheral interface disabled
1 = AS and DEN only become active when CPU accesses
0 = AS and DEN always active
POR
Bit 7
$0030–$003F
U
Figure 15-2 System Control Register (SYSCR)
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Fast Parallel Interface
INTP
6
0
INTN
5
0
INTE
4
1
WCOP
3
0
WCP
2
0
Fast Parallel Interface
FPIE
1
0
Technical Data
Description
FPICLK
Bit 0
0
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