mc68hc908jb8 Freescale Semiconductor, Inc, mc68hc908jb8 Datasheet - Page 240
mc68hc908jb8
Manufacturer Part Number
mc68hc908jb8
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908JB8.pdf
(286 pages)
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Computer Operating Properly (COP)
15.4.4 Power-On Reset
15.4.5 Internal Reset
15.4.6 Reset Vector Fetch
15.4.7 COPD (COP Disable)
15.4.8 COPRS (COP Rate Select)
Technical Data
240
Address:
Reset:
The power-on reset (POR) circuit in the SIM clears the COP prescaler
4096 OSCXCLK cycles after power-up.
An internal reset clears the SIM counter and the COP counter.
A reset vector fetch occurs when the vector address appears on the data
bus. A reset vector fetch clears the COP prescaler.
The COPD signal reflects the state of the COP disable bit (COPD) in the
configuration register (CONFIG).
The COPRS signal reflects the state of the COP rate select bit (COPRS)
in the configuration register (CONFIG).
Read:
Write:
$001F
Bit 7
Computer Operating Properly (COP)
0
0
Figure 15-2. Configuration Register (CONFIG)
= Unimplemented
6
0
0
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
URSTD
5
0
LVID
4
0
SSREC
3
0
COPRS
2
0
Freescale Semiconductor
STOP
1
0
COPD
Bit 0
0
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