SDA5250 Datasheet, PDF (66/143 Pages) Siemens Semiconductor Group – TVTEXT 8-Bit Microcontroller

SDA 525x
Input Level and
Interrupt
Request Flag
Registers:
Interrupt ENABLE
Register:
Source
ENABLE
Global
ENABLE
TCON.1 IE.0
IE.7
INT 0 ^External
Interrupt
RQST 0
IE 0 EX 0
TCON.5 IE.1
Internal
Timer 0
TF 0 ET 0
TCON.3 IE.2
INT 1 ^External
Interrupt
RQST 1
IE 1 EX 1
TCON.7 IE.3
Internal
Timer 1
TF 1 ET 1
SCON 1/0 IE.4
Internal
Serial
Port
RI/TI ES
ICCON.4 IE.5
Internal
Ι² C
IIN EIC
EA
ADCON.5 IE.6
Internal
Analog
Digital
Converter _{IADC EAD}
EA
Interrupt
Priority
Registers:
IP1.0
IP0.0
IP1.1
IP0.1
IP1.2
IP0.2
IP1.3
IP0.3
IP1.4
IP0.4
IP1.5
IP0.5
IP1.6
IP0.6
Highest
Priority Level
Lowest
Priority Level
UES05465
• SEVEN INTERRUPT SOURCES
• EACH INTERRUPT CAN BE INDIVIDUALLY ENABLED/DISABLED
• ENABLED INTERRUPTS CAN BE GLOBALLY ENABLED/DISABLED
• EACH INTERRUPT CAN BE ASSIGNED TO EITHER OF FOUR PRIORITY LEVELS
• EACH INTERRUPT VECTORS TO A SEPARATE LOCATION IN PROGRAM MEMORY
• INTERRUPT NESTING TO FOUR LEVELS
• EXTERNAL INTERRUPT REQUESTS CAN BE PROGRAMMED TO BE LEVEL- OR
TRANSITION-ACTIVATED
Figure 23
Interrupt System
Semiconductor Group
66
1998-04-08