IC-JX_16 Datasheet, PDF (26/48 Pages) IC-Haus GmbH – 16-FOLD 24 V HIGH-SIDE DRIVER

iC-JX
16-FOLD 24 V HIGH-SIDE DRIVER WITH µC INTERFACE
Pin Status: overcurrent (interrupt)
Rev C2, Page 26/48
A read access to one of the registers Interrupt Status Register A/B, Overcurrent Message A/B or Change-of-input
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 interrupt such as a successive overcurrent interrupt message which occurs during the read-out phase and
before a reset with EOI is 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 on high. In
this instance, EOI fills the overcurrent message from the pipeline.
If enabled with SCENx (see P. 28) the following registers are used to indicate an overcurrent state at output IOx.
For IOx pins in input mode ’0’ is output. SCIx reports for IOx.
The SCIx bits may be erased selectable by re-enabling SCENx after disable.
Overcurrent Message A (read only)
Bit
Name
7
SCI8
6
SCI7
5
SCI6
4
SCI5
3
SCI4
2
SCI3
1
SCI2
Addr. 0x06
reset entry: 0x00
0
SCI1
Bit7...0 0
SCI8...1 1
No Message
(r)
Output IOx has had an overcurrent state enabled for interrupt messages (short circuit)
Overcurrent Message B (read only)
Bit
Name
7
SCI16
6
SCI15
5
SCI14
4
SCI13
3
SCI12
2
SCI11
Addr. 0x07
reset entry: 0x00
1
0
SCI10
SCI9
Bit7...0 0
SCI16...9 1
No Message
(r)
Output IOx has had an overcurrent state enabled for interrupt messages (short circuit)
Pin Status: overcurrent (status)
Overcurrent Status A and B can be used for error analysis and do not generate any interrupts (real time, no
register). ’0’ is output for IOx pins in input mode. SCx reports for IOx.
Overcurrent Status A (read only)
Addr. 0x08
reset entry : 0x00
Bit
7
6
5
4
3
2
1
0
Name
SC8
SC7
SC6
SC5
SC4
SC3
SC2
SC1
Bit7...0 0
No overcurrent
(r)
SC8...1 1
Overcurrent in output IOx, e.g. through a low-side short circuit
Overcurrent Status B (read only)
Bit
Name
7
SC16
6
SC15
5
SC14
4
SC13
3
SC12
2
SC11
Addr. 0x09
reset entry: 0x00
1
0
SC10
SC9
Bit7...0 0
No overcurrent
(r)
SC16...9 1
Overcurrent in output IOx, e.g. through a low-side short circuit