SAH-C515 SIEMENS [Siemens Semiconductor Group], SAH-C515 Datasheet - Page 122
SAH-C515
Manufacturer Part Number
SAH-C515
Description
8-Bit CMOS Microcontroller
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.SAH-C515.pdf
(160 pages)
- Current page: 122 of 160
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7.1.3 Interrupt Priority Registers
The lower six bits of these two registers are used to define the interrupt priority level of the interrupt
groups as they are defined in table 7-1 in the next section.
Special Function Register IP0 (Address A9 H )
Special Function Register IP1 (Address B9 H )
Bit
IP1.x
IP0.x
Semiconductor Group
Bit No.
Bit No.
B9 H
A9 H
The shaded bits are not used for interrupt control.
MSB
–
–
7
7
Function
Interrupt group priority level bits (x=1-6, see table 7-1)
IP1.x
0
0
1
1
WDTS
–
6
6
IP1.5
IP0.5
IP0.x
0
1
0
1
5
5
IP1.4
IP0.4
4
4
Function
Interrupt group x is set to priority level 0 (lowest)
Interrupt group x is set to priority level 1
Interrupt group x is set to priority level 2
Interrupt group x is set to priority level 3 (highest)
7-11
IP1.3
IP0.3
3
3
IP1.2
IP0.2
2
2
IP1.1
IP0.1
1
1
Reset Value : XX000000 B
Reset Value : X0000000 B
IP1.0
Interrupt System
IP0.0
LSB
0
0
IP1
IP0
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