Datasheet

Register Descriptions
56F8345 Technical Data, Rev. 17
Freescale Semiconductor 85
Preliminary
5.6.5 Interrupt Priority Register 4 (IPR4)
Figure 5-7 Interrupt Priority Register 4 (IPR4)
5.6.5.1 SPI 0 Receiver Full Interrupt Priority Level (SPI0_RCV IPL)—
Bits 15–14
This field is used to set the interrupt priority level for IRQs. This IRQ is limited to priorities 0 through 2.
They are disabled by default.
• 00 = IRQ disabled (default)
• 01 = IRQ is priority level 0
• 10 = IRQ is priority level 1
• 11 = IRQ is priority level 2
5.6.5.2 SPI 1 Transmit Empty Interrupt Priority Level (SPI1_XMIT IPL)—
Bits 13–12
This field is used to set the interrupt priority level for IRQs. This IRQ is limited to priorities 0 through 2.
They are disabled by default.
• 00 = IRQ disabled (default)
• 01 = IRQ is priority level 0
• 10 = IRQ is priority level 1
• 11 = IRQ is priority level 2
5.6.5.3 SPI 1 Receiver Full Interrupt Priority Level (SPI1_RCV IPL)—
Bits 11–10
This field is used to set the interrupt priority level for IRQs. This IRQ is limited to priorities 0 through 2.
They are disabled by default.
• 00 = IRQ disabled (default)
• 01 = IRQ is priority level 0
• 10 = IRQ is priority level 1
• 11 = IRQ is priority level 2
5.6.5.4 Reserved—Bits 9–6
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
Base + $4 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Read
SPI0_RCV
IPL
SPI1_XMIT
IPL
SPI1_RCV
IPL
0 0 0 0
GPIOA
IPL
GPIOB
IPL
GPIOC
IPL
Write
RESET
0000000000000000