ST5080D View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST5080D

PIAFE PROGRAMMABLE ISDN AUDIO FRONT END

STMicroelectronics 

ST5080A

Table 4: Control Register CR2 Functions

76543210

d7 d6 d5 d4 d3 d2 d1 d0

Function

msb

lsb Data sent to Receive path or Data received from DR input

Table 5: Control Registers CR3 Functions

76543210

d7 d6 d5 d4 d3 d2 d1 d0

msb

lsb DX data transmitted

Function

Table 6: Control Register CR4 Functions

76543210

VS TE SI EE RTL RTE SL SE

Function

0

MIC1 selected

*

1

MIC2 selected

0

Transmit input muted

*

1

Transmit input enabled

0

Internal sidetone disabled

*

1

Internal sidetone enabled

0

EAIN disconnected

*

1

EAIN selected to Loudspeaker

00

Ring / Tone muted

*

01

Ring / Tone to Earpiece

10

Ring / Tone to Loudspeaker

11

Ring / Tone to Earpiece and Loudspeaker

0 0 Receive signal muted

*

0 1 Receive signal connected to earpiece amplifer

1 0 Receive signal connected to loudspeaker amplifier

1 1 Receive signal connected to loudspeaker and

earpiece amplifier

*:

state at power on initialization

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