iC-JX
16-FOLD 24 V HIGH-SIDE DRIVER WITH µC INTERFACE
Rev C1, Page 16/36
Interrupt Status Register A (read only)
Adr. 0x04
reset entry: 0x00
Bit
Name
7
6
IET2
5
IET1
4
ISCI
3
-
2
ET2
1
ET1
0
SCS
DCHI
Change-of-input data, overtemperatur, overcurrent (interrupts stored)
Bit7
DCHI
Bit6
IET2
Bit5
IET1
Bit4
0
1
0
1
0
1
0
1
No message
Interrupt through change-of input message
No message
Interrupt through excessive temperature level 2
No message
Interrupt through excessive temperature level 1
No message
(r)
(r)
(r)
(r)
ISCI
Interrupt through overcurrent message
Excessive temperature status, overcurrent status (real time signals, at the time of readout)
Bit2
ET2
Bit1
ET1
Bit0
SCS
0
1
0
1
0
1
No error message
Excessive temperature level 2 (shutdown)
No error message
Excessive temperature level 1 (warning)
No error message
Overcurrent status (e.g. caused by low-side short circuit)
(r)
(r)
(r)
Interrupt Status Register B (read only)
Adr. 0x05
reset entry: 0x00
0
Bit
7
6
5
4
3
-
2
EOC
1
USD
Name
IEOC
ISD
IUSD
IUSA
USA
A/D-Converter, Bursts, Undervoltage (interrupts stored)
Bit7
IEOC
Bit6
ISD
Bit5
IUSD
Bit4
IUSA
0
1
0
1
0
1
0
1
No message
Interrupt by the A/D-Converter
No message
Interrupt caused by bursts at VDD
No message
Interrupt caused by undervoltage at VDD
No message
(r)
(r)
(r)
(r)
Interrupt caused by undervoltage at VCC
A/D-Converter, Undervoltage (real time signals, at the time of readout)
Bit2
EOC
Bit1
USD
Bit0
USA
0
1
0
1
0
1
No message
A/D conversion completed (End of Conversion)
No message
Undervoltage at VDD
No message
Undervoltage at VCC
(r)
(r)
(r)
Read access gates off changes to the register; the register is reenabled only when reset via EOI. Any successive
interrupts which occur at DCHI, IET2, IET1, ISCI, IEOC, ISD, IUSD und IUSA during the read-out phase and
before a reset with EOI are trapped by an interrupt pipeline. If this happens, the message at NINT resp. D1/SOC
or D2/SOB cannot be deletet by EOI, i.e. NINT resp. D1/SOC or D2/SOB constantly remains on low. In this
instance, EOI fills the overcurrent message from the pipeline.
ICHAUS [ IC-HAUS GMBH ]
