mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 87

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

The IRQ pin, when enabled, defaults to use an internal pull device (IRQPDD = 0), configured as a pullup
or pulldown depending on the polarity chosen. If the user desires to use an external pullup or pulldown,
the IRQPDD can be set to turn off the internal device.
5.4.2
Freescale Semiconductor
Interrupt Vectors, Sources, and Local Masks
Number(s)
Vector
2–63
This pin does not contain a clamp diode to V
above V
The voltage measured on the internally pullup IRQ pin will not be pulled to
V
pullup must not be used to pull up components external to the
microcontroller.
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
0
1
DD
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
. The internal gates connected to this pin are pulled to V
DD
Vector Address
.
0x008–0x0FC
Offset (Hex)
0x10C
0x11C
0x12C
0x000
0x004
0x100
0x104
0x108
0x110
0x114
0x118
0x120
0x124
0x128
0x130
0x134
0x138
Table 5-2. Reset and Interrupt Vectors
Interrupt
Priority
Level,
7,mid
5,mid
4,mid
7,3
7,2
5,6
5,5
5,4
5,3
5,2
5,1
4,6
4,5
4,4
4,3
—
—
—
NOTE
NOTE
Program
Stacked
Counter
Next
Next
Next
Next
Next
Next
Next
Next
Next
Next
Next
Next
Next
Next
Next
—
—
—
DD
and must not be driven
Resets, Interrupts, and General System Control
Initial supervisor stack pointer
Reserved for internal CPU
exceptions (see
Initial program counter
Low_voltage_detect
Assignment
DD
FTM1_ch0
FTM1_ch1
FTM1_ch2
FTM1_ch3
FTM1_ch4
FTM1_ch5
FTM2_ch0
FTM2_ch1
FTM2_ch2
FTM2_ch3
FTM2_ch4
MCG_lock
FTM1_ovfl
IRQ_pin
. The IRQ
Table
7-6)
5-5