STLC5048

18/45

Interrupt Mask Register for I/O port (DMASK)

Addr=11h; Reset Value=FFh

Addr=12h; Reset Value=XFh

Input lines with persistency check generate interrupt if the changed status remains stable longer than the time

programmed in the persistency check register PCHKA/B. Line without persistency check generate an immedi-

ate interrupt request.

Mask register has no effect on those pins configured as outputs, those pins will not generate interrupt.

Interrupt Mask Register for Interrupt (IMASK)

Addr=13h; Reset Value=FFh

For dynamic I/O configuration, MCn bits are the disable/enable interrupt related to the channel n.

MC3..0=1: Any I/O line of the related channel #n is disabled to generate interrupt independently of DMASK setting.

MC3..0=0: Any I/O line of the related channel #n is enabled to generate interrupt depending on DMASK setting.

For static I/O configuration, MCn bits are the interrupt mask bits related to CSn that are configured as I/O lines.

MC0=1: The corresponding I/O cannot generate interrupt independently of DMASK setting.

MC0=0: The corresponding I/O can generate interrupt if a change of status is detected depending of DMASK setting.

MC2=1: The corresponding I/O cannot generate interrupt independently of DATA3_L setting (bit 3..0).

MC2=0: The corresponding I/O can generate interrupt if a change of status is detected depending of DATA3_L

setting (bit 3..0).

MC3 and MC1 bit are not used in static mode.

Input lines with persistency check generate interrupt if the changed status remains stable longer than the time

programmed in the persistency check register PCHKA/B. Line without persistency check generate an immedi-

ate interrupt request.

Mask register has no effect on those pins configured as outputs, those pins will not generate interrupt

MCF=1: The corresponding alarm bit (CKF) doesn’t generate interrupt.

MCF=0: The corresponding alarm bit (CKF) can generate interrupt.

MTV=1: The corresponding alarm bit (TV) doesn’t generate interrupt.

MTV=0: The corresponding alarm bit (TV) can generate interrupt.

MPCM =1 : The IPCM interrupt is masked (generation disabled).

MPCM =0 : The IPCM interrupt is enabled (generation enabled).

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

R/W

0

010001

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

R/W

0

010010

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

R/W

0

010011

x

MTV

MPCM

MCF

MC3

MC2

MC1

MC0