sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 249

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

7.3.2.12
This register is used to restart the COP time-out period.
Read: Always reads $00
Write: Anytime
When the COP is disabled (CR[2:0] = “000”) writing to this register has no effect.
When the COP is enabled by setting CR[2:0] nonzero, the following applies:
7.3.2.13
The CPMUHTCTL register configures the temperature sense features.
Read: Anytime
Write: VSEL, HTE, HTIE and HTIF are write anytime, HTDS is read only
Freescale Semiconductor
0x02F0
0x003F
Reset
Reset
W
W
R
R
Writing any value other than $55 or $AA causes a COP reset. To restart the COP time-out period
write $55 followed by a write of $AA. These writes do not need to occur back-to-back, but the
sequence ($55, $AA) must be completed prior to COP end of time-out period to avoid a COP reset.
Sequences of $55 writes are allowed. When the WCOP bit is set, $55 and $AA writes must be done
in the last 25% of the selected time-out period; writing any value in the first 75% of the selected
period will cause a COP reset.
Bit 7
S12CPMU COP Timer Arm/Reset Register (CPMUARMCOP)
H
0
0
0
0
7
7
igh
T
= Unimplemented or Reserved
emperature
Bit 6
0
0
0
0
6
6
Figure 7-15. S12CPMU CPMUARMCOP Register
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
VSEL
Bit 5
0
0
0
5
5
Control Register (CPMUHTCTL)
S12 Clock, Reset and Power Management Unit (S12CPMU) Block Description
Bit 4
0
0
0
0
4
4
Bit 3
HTE
0
0
0
3
3
HTDS
Bit 2
0
0
0
2
2
HTIE
Bit 1
0
0
0
1
1
HTIF
Bit 0
0
0
0
0
0
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