FIQIRR R Addr.: 0x5000_0050 Default: 0x0000_0020
Description FIQ request register
Indication of the fast interrupt request detected with a positive edge
Bit No. Name Description
7 – 0 FIQIRR Inputs 0 to 7 of the FIQ interrupt controller
'0' = No request
'1' = Request is occurred
FIQ_MASKREG R/W Addr.: 0x5000_0054 Default: 0x0000_00FF
Description Interrupt mask register for FIQ
Enable/disable of FIQ interrupt inputs
Bit No. Name Description
7 – 0 FIQ_MASKREG FIQ interrupt input 0 to 7
0' = Interrupt input enabled
'1' = Interrupt input disabled
IRREG R Addr.: 0x5000_0058 Default:0x0000_01xx
Description Interrupt request register
Storage of interrupt requests that have occurred
Bit No. Name Description
15 – 0 IRREG Interrupt input 0 to 15
0=Interrupt request inactive/1=Interrupt request active
Bit 5, 4, 3, 2 depending on GPIO 31, 30, 1, 0
MASKREG R/W Addr.: 0x5000_005C Default: 0x0000_FFFF
Description Interrupt mask register
Enable/disable of interrupt inputs
Bit No. Name Description
15 – 0 MASKREG Interrupt input 0 to 15
0=Interrupt input enabled/1=Interrupt input disabled
ISREG R Addr.: 0x5000_0060 Default: 0x0000_0000
Description In-service register
Indication of the interrupt requests confirmed by the CPU
Bit No. Name Description
15 – 0 ISREG Interrupt input 0 to 15
0=Interrupt request not confirmed
1=Interrupt request has been confirmed
TRIGREG R/W Addr.: 0x50 00_0064 Default: 0x0000_0000
Description Trigger select register
Selection of interrupt detection
Bit No. Name Description
15 – 0 TRIGREG Interrupt input 0 to 15
0=Interrupt detection via edge
1=Interrupt detection via level
EDGEREG R/W Addr.: 0x5000_0068 Default: 0x0000_0000
Description Edge select register
Edge selection for interrupt detection
(only if edge detection is specified for the associated input)
Bit No. Name Description
15 – 0 EDGEREG Interrupt input 0 to 15
0=Interrupt detection via positive edge
1=Interrupt detection via negative edge
Copyright © Siemens AG 2007. All rights reserved. 29 ERTEC 200 Manual
Technical data subject to change Version 1.1.0