STLC5046 datasheet(16/27 Pages) STMICROELECTRONICS

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on carrying the PCM signal to be decoded and

tranferred to VFRO2 output.If linear mode is se-

lected (LIN=1 of CONF register) the 16 bits will

be used as linear code as follows: the 8most sig-

nificative bits in the programmed time slot, the 8

least significative bits in the following timeslot.

Example: if R26..R20=00:

TS0

TS1

15 14 13 12 11 10 9

Pin strap value (value=80h)

100

Referred to FS2.

Receive Time Slot channel #3 (DRA3)

Addr=1Ah; Reset Value=00h

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

EN3

R36

R35

R34

R33

R32

R31

R30

EN3=0:

Disable reception of selected time slot.

EN3=1:

Selected receive time slot on DR input is

PCM decoded and tranferred to VFRO1

output.

R36..0:Define receive time slot number (0 to 127)

on carrying the PCM signal to be decoded and

tranferred to VFRO2 output.If linear mode is se-

lected (LIN=1 of CONF register) the 16 bits will

be used as linear code as follows: the 8most sig-

nificative bits in the programmed time slot, the 8

least significative bits in the following timeslot.

Example: if R36..R30=00:

TS0

TS1

15 14 13 12 11 10 9

Pin strap value (value=80h)

100

Referred to FS3.

PCM Shift Register (PCMSH)

Addr=1Bh; Reset Value=00h

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

XS2

XS1

XS0

RS2

RS1

RS0

XS2..0:Effective start of the TX frame is the pro-

grammed values of clock pulses (0 to 7) after the

FS rising edge.

RS2..0:Effective start of the RX frame is the pro-

grammed values of clock pulses (0 to 7) after the

FS rising edge.

Pin strap value (value=00h):

000

Interrupt Mask Register for I/O port (DMASK)

Addr=1Ch; Reset Value=FFh

Addr=1Dh; Reset Value=XFh

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

MD7

MD6

MD5

MD4

MD3

MD2

MD1

MD0

MD11 MD10 MD9

MD8

MD11..0=1: The corresponding I/O doesn’t gen-

erate interrupt.

MD11..0=0: The corresponding I/O (programmed

as Input) generate interrupt if a change of status

is detected.

Input lines with persistency check generate inter-

rupt if the changed status remains stable longer

than the

time programmed in the persistency

check registers PCHKA/B. Lines without persis-

tance check generate an immediate interrupt re-

quest.

Mask register has no effect on those pins config-

ured as outputs, those pins will not generate in-

terrupt.

Pin strap value.

111

Interrupt Mask Register for CD port (CMASK)

Addr=1Eh; Reset Value=XFh

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

MC3

MC2

MC1

MC0

In MCU mode, dynamic I/O configuration, MCn

bits are the disable/enable interrupt related to the

channel n :

MC3..0= 0 Any I/O line of the related channel is

enabled to generate interrupt depending on

DMASK setting.

MC3..0=1

Any I/O line of the related chanel is

disabled to generate interrupt indipendently of

DMASK setting.

In MCU mode, static I/O configuration, MCn bits

are the interrupt mask bits related to CSn that

are configured as I/O lines.

MC3..0=1: The corresponding I/O doesn’t gener-

ate interrupt.

MC3..0=0: The corresponding I/O generate inter-

rupt if a change of status is detected.

STLC5046

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