Intel 8XC251SQ, 8XC251SA, 8XC251SP, 8XC251SB, Embedded Microcontroller manual IPH0, IPL0

8XC251SA, SB, SP, SQ USER’S MANUAL

IPH0							Address:			S:B7H
						Reset State:			X000 0000B
7									0
—	IPH0.6	IPH0.5		IPH0.4	IPH0.3	IPH0.2		IPH0.1		IPH0.0
Bit	Bit				Function
Number	Mnemonic
7	—		Reserved. The value read from this bit is indeterminate. Write a “0” to
			this bit.
6	IPH0.6		PCA Interrupt Priority Bit High
5	IPH0.5		Timer 2 Overflow Interrupt Priority Bit High
4	IPH0.4		Serial I/O Port Interrupt Priority Bit High
3	IPH0.3		Timer 1 Overflow Interrupt Priority Bit High
2	IPH0.2		External Interrupt 1 Priority Bit High
1	IPH0.1		Timer 0 Overflow Interrupt Priority Bit High
0	IPH0.0		External Interrupt 0 Priority Bit High
		Figure 6-3. Interrupt Priority High Register
IPL0							Address:			S:B8H
						Reset State:			X000 0000B
7									0

—

IPL0.6

IPL0.5

IPL0.4 IPL0.3

IPL0.2

IPL0.1

IPL0.0

Bit	Bit	Function
Number	Mnemonic
7	—	Reserved. The value read from this bit is indeterminate. Write a “0” to
		this bit.
6	IPL0.6	PCA Interrupt Priority Bit Low
5	IPL0.5	Timer 2 Overflow Interrupt Priority Bit Low
4	IPL0.4	Serial I/O Port Interrupt Priority Bit Low
3	IPL0.3	Timer 1 Overflow Interrupt Priority Bit Low
2	IPL0.2	External Interrupt 1 Priority Bit Low
1	IPL0.1	Timer 0 Overflow Interrupt Priority Bit Low
0	IPL0.0	External Interrupt 0 Priority Bit Low

Figure 6-4. Interrupt Priority Low Register

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