IC-JX_16 Datasheet, PDF (29/48 Pages) IC-Haus GmbH – 16-FOLD 24 V HIGH-SIDE DRIVER

iC-JX
16-FOLD 24 V HIGH-SIDE DRIVER WITH µC INTERFACE
Interrupt Messages
Rev C2, Page 29/48
A read access to one of the registers Interrupt Status Register A/B, Over Current Message A/B or Input Change
Message A/B while an interrupt message is active (DCHI, ISCI, IET1, IET2, IEOC, ISD, IUSD or IUSA) locks all of
these registers against further changes: the registers are re-enabled only when reset via EOI (see P. 21). Any
successive interrupts which occur at DCHI, IET2, IET1, ISCI, IEOC, ISD, IUSD and 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 deleted by EOI, i.e. NINT remains low resp. D1/SOC or D2/SOB constantly
remain high. In this instance, EOI fills the overcurrent message from the pipeline.
Interrupt Status Register A (read only)
Bit
7
6
5
4
3
Name
DCHI
IET2
IET1
ISCI
-
Addr. 0x04
reset entry: 0x00
2
1
0
ET2
ET1
SCS
Interrupts: Change-of-input data, Overtemperature, overcurrent
Bit7
0
No message
(r)
DCHI
1
Interrupt through change-of input message
Bit6
0
No message
(r)
IET2
1
Interrupt through excessive temperature level 2
Bit5
0
No message
(r)
IET1
1
Interrupt through excessive temperature level 1
Bit4
0
No message
(r)
ISCI
1
Interrupt through overcurrent message
Real time signals: Excessive temperature status, overcurrent status
Bit2
0
No error message
(r)
ET2
1
Excessive temperature level 2 (shutdown)
Bit1
0
No error message
(r)
ET1
1
Excessive temperature level 1 (warning)
Bit0
0
No error message
(r)
SCS
1
Overcurrent status (e.g. caused by low-side short circuit)
Interrupt Status Register B (read only)
Bit
7
6
Name
IEOC
ISD
5
4
3
IUSD
IUSA
-
2
EOC
1
USD
Addr. 0x05
reset entry: 0x00
0
USA
Interrupts: A/D-Converter, Bursts, Undervoltage
Bit7
0
No message
(r)
IEOC
1
Interrupt by the A/D-Converter
Bit6
0
No message
(r)
ISD
1
Interrupt caused by bursts at VDD
Bit5
0
No message
(r)
IUSD
1
Interrupt caused by undervoltage at VDD
Bit4
0
No message
(r)
IUSA
1
Interrupt caused by undervoltage at VCC
Real time signals: A/D-Converter, Undervoltage
Bit2
0
No message
(r)
EOC
1
A/D conversion completed (End of Conversion)
Bit1
0
No message
(r)
USD
1
Undervoltage at VDD
Bit0
0
No message
(r)
USA
1
Undervoltage at VCC