mc68hc05pv8 Freescale Semiconductor, Inc, mc68hc05pv8 Datasheet - Page 73

• Manufacturer Part Number: mc68hc05pv8
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

4.9 Ambient Exception Interrupts
4.10 High Temperature Interrupt
MC68HC(8)05PV8/A — Rev. 1.9
There are three different interrupt flags that cause an environmental
exception interrupt whenever they are set and enabled. The interrupt
flags are in the reset/interrupt status register (INTSR), and the enable
bits are in the interrupt control register (INTCR). Any of these interrupts
vectors to the same interrupt service routine, located at the address
specified by the contents of memory location $3FF4 and $3FF5.
HTIF – High Temperature Interrupt Flag
Reset:
Reset:
$0028
$0029
Read:
Write:
Read:
Write:
This bit is set if the die temperature is higher than the upper trip point
and cleared again if the die temperature falls below the lower trip point
of the HTI.
Freescale Semiconductor, Inc.
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1 = The die temperature is higher than T
0 = The die temperature is lower than T
RCON
ULPM
Bit 7
Bit 7
NA
0
Figure 4-3 Interrupt Control Register (INTCR)
Figure 4-4 Interrupt Status Register (INTSR)
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PC4CL
6
0
0
6
0
Interrupts
5
0
0
5
0
0
4
0
0
4
0
0
3
0
0
3
0
0
HTIOFF
HTION
Ambient Exception Interrupts
HTIE
HTIF
2
0
2
?
HVIE
HVIF
1
0
1
0
Technical Data
Interrupts
LVIE
LVIF
Bit 0
Bit 0
0
0