Intel 8XC251SA User Manual page 112

8XC251SA, SB, SP, SQ USER'S MANUAL
IPH0
7
— IPH0.6
Bit Bit
Number Mnemonic
7 —
6 IPH0.6
5 IPH0.5
4 IPH0.4
3 IPH0.3
2 IPH0.2
1 IPH0.1
0 IPH0.0
IPL0
7
— IPL0.6
Bit Bit
Number Mnemonic
7 —
6 IPL0.6
5 IPL0.5
4 IPL0.4
3 IPL0.3
2 IPL0.2
1 IPL0.1
0 IPL0.0
6-8
IPH0.5 IPH0.4
Reserved. The value read from this bit is indeterminate. Write a "0" to
this bit.
PCA Interrupt Priority Bit High
Timer 2 Overflow Interrupt Priority Bit High
Serial I/O Port Interrupt Priority Bit High
Timer 1 Overflow Interrupt Priority Bit High
External Interrupt 1 Priority Bit High
Timer 0 Overflow Interrupt Priority Bit High
External Interrupt 0 Priority Bit High
Figure 6-3. Interrupt Priority High Register
IPL0.5 IPL0.4
Reserved. The value read from this bit is indeterminate. Write a "0" to
this bit.
PCA Interrupt Priority Bit Low
Timer 2 Overflow Interrupt Priority Bit Low
Serial I/O Port Interrupt Priority Bit Low
Timer 1 Overflow Interrupt Priority Bit Low
External Interrupt 1 Priority Bit Low
Timer 0 Overflow Interrupt Priority Bit Low
External Interrupt 0 Priority Bit Low
Figure 6-4. Interrupt Priority Low Register
Address:
Reset State:
IPH0.3 IPH0.2 IPH0.1
Function
Address:
Reset State:
IPL0.3 IPL0.2
Function
S:B7H
X000 0000B
0
IPH0.0
S:B8H
X000 0000B
0
IPL0.1 IPL0.0