SAF82525 Infineon Technologies AG, SAF82525 Datasheet - Page 39

• Manufacturer Part Number: SAF82525
• Description: Data Communications ICs
• Manufacturer: Infineon Technologies AG

4.3 Interrupt Interface
Special events in the HSCX are indicated by means of a single interrupt output, which requests
the CPU to read status information from the HSCX, or, if Interrupt Mode is selected, transfer
data from/to HSCX.
Since only one INT request output is provided, the cause of an interrupt must be determined
by the CPU reading the HSCX’s interrupt status registers (ISTA, EXIR).
The structure of the interrupt status registers is shown in figure 20.
Figure 20
HSCX Interrupt Status Registers
Semiconductor Group
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SAB 82525
SAB 82526
SAF 82525
SAF 82526