PEB2254H-V14 Infineon Technologies, PEB2254H-V14 Datasheet - Page 30

• Manufacturer Part Number: PEB2254H-V14
• Manufacturer: Infineon Technologies

Specifications of PEB2254H-V14

• Operating Supply Voltage (typ): 5V
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Masked Interrupts Visible in Status Registers
The Global Interrupt Status register (GIS) indicates those interrupt status registers with
active interrupt indications (GIS.ISR0-3).
An additional mode can be selected via bit IPC.VIS.
In this mode, masked interrupt status bits neither generate an interrupt at pin INT nor are
they visible in GIS, but are displayed in the respective interrupt status register(s)
ISR0..3.
This mode is useful when some interrupt status bits are to be polled in the individual
interrupt status registers.
Notes:
• In the visible mode, all active interrupt status bits, whether the corresponding actual
• All unmasked interrupt statuses are treated as before.
Please note that whenever polling is used, all interrupt status registers concerned
have to be polled individually (no “hierarchical” polling possible), since GIS only
contains information on actually generated - i.e. unmasked-interrupts.
Semiconductor Group
interrupt is masked or not, are reset when the interrupt status register is read. Thus,
when polling of some interrupt status bits is desired, care must be taken that
unmasked interrupts are not lost in the process.
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General Features E1
PEB 2254
11.96