29

DA9191A.000

July 31, 1997

FUNCTIONS

Bit

Name

State

Function

3-0

GC1[3:0]

0000-1111

Control range for GC1: -3.0dB … +3.0dB, 0.4dB/step

0000

-3.0dB

0001

-2.6dB

0010

-2.2dB

…….

1111

+3.0dB

1000

+0.2dB default value

4

S1

0

RX

connected to GC1 input

1

ALP

5

S2

0

F4 output

connected to DEOUT

1

F4 input

6

S3

0

signal from S2-RXTST0-RXTST1

connected to F5 input

1

RBPFIN

7

S4

0

F5 output

connected to RBPFOUT

1

F5 input

Bit

Name

State

Function

0

STD

0

DTMF tone not received

1

DTMF tone received

1

RXWRD

0

RX buffer empty

1

RX word received (SYS1 = 0)

Next captured byte ready (SYS1 = 1)

2

TXWRD

0

Transmitting previous byte or word

1

TX buffer empty

3

TXCOL

0

No TX collision detected

1

TX collision detected

4

SATINT

0

SATDET signal stable

1

rising or falling edge of SATDET detected

7-5

reserved

0,1

not in use

The rising edge of the signals STD, RXWRD, TXWRD, TXCOL and SATINT activates the interrupt line XINT. If the

after the register read. Reading this register sets the interrupt line inactive. If a new interrupt is generated during

register read , the interrupt line will be activated again right after register is read.