Information

Table 3-4. Interrupt vector assignments (continued)
Address Vector IRQ
1
NVIC
non-IPR
register
number
2
NVIC
IPR
register
number
3
Source module Source description
0x0000_01A4 105 89 2 22 Port control
module
Pin detect (Port C)
0x0000_01A8 106 90 2 22 Port control
module
Pin detect (Port D)
0x0000_01AC 107 91 2 22 Port control
module
Pin detect (Port E)
0x0000_01B0 108 92 2 23 — —
0x0000_01B4 109 93 2 23 — —
0x0000_01B8 110 94 2 23 Software Software interrupt
4
1. Indicates the NVIC's interrupt source number.
2. Indicates the NVIC's ISER, ICER, ISPR, ICPR, and IABR register number used for this IRQ. The equation to calculate this
value is: IRQ div 32
3. Indicates the NVIC's IPR register number used for this IRQ. The equation to calculate this value is: IRQ div 4
4. This interrupt can only be pended or cleared via the NVIC registers.
3.2.2.3.1 Determining the bitfield and register location for configuring a
particular interrupt
Suppose you need to configure the low-power timer (LPTMR) interrupt. The following
table is an excerpt of the LPTMR row from Interrupt channel assignments.
Table 3-5. LPTMR interrupt vector assignment
Address Vector IRQ
1
NVIC
non-IPR
register
number
2
NVIC
IPR
register
number
3
Source module Source description
0x0000_0194 101 85 2 21 Low Power Timer —
1. Indicates the NVIC's interrupt source number.
2. Indicates the NVIC's ISER, ICER, ISPR, ICPR, and IABR register number used for this IRQ. The equation to calculate this
value is: IRQ div 32
3. Indicates the NVIC's IPR register number used for this IRQ. The equation to calculate this value is: IRQ div 4
• The NVIC registers you would use to configure the interrupt are:
• NVICISER2
• NVICICER2
• NVICISPR2
• NVICICPR2
Chapter 3 Chip Configuration
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc. 71