ST5088 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST5088

PROGRAMMABLE AUDIO FRONT END FOR DIGITAL PHONES AND ISDN TERMINALS

STMicroelectronics 

ST5088

Table 2: Control Register CR0 Functions

7 65 43 21 0

F1 F0 MA IA DN FF B7 DL

Function

00

01

10

11

MCLK = 512 kHz

MCLK = 1.536 MHz

MCLK = 2.048 MHz

MCLK = 2.560 MHz

00

01

10

11

MU-law; CCITT D3-D4

MU-law; Bare Coding

A-law including even bit inversion

A-law; Bare Coding

0

Delayed data timing

1

Non delayed data timing

0

B1 and B2 consecutive

1

B1 and B2 separated

0

8 bits time-slot

1

7 bits time-slot

0 Normal operation

1 Digital Loop-back

*:

state at power on initialization

(1):

significant in COMBO I/II mode only

(1)

*

(1)

*

*

(1)

(1)

*

(1)

(1)

*

*

Table 3: Control Register CR1 Functions

76543210

HFE ALE DO MR MX EN T1 T0

Function

0

HFO / HFI pins disabled

1

HFO / HFi pins enabled

0

Anti-larsen disabled

1

Anti-larsen enabled

0

L0 latch is put in high impedance

1

L0 latch set to 0

0

DR connected to rec. path

1

CR2 connected to rec. path

0

Trans path connected to DX

1

CR3 connected to DX

0

voice data transfer disable

1

voice data transfer enable

0 0 B1 channel selected

0 1 B2 channel selected

1 0 B1* channel selected

1 1 B2* channel selected

*:

(1):

(2):

14/33

state at power on initialization

significant in COMBO I / II mode only

significant in GCI mode only.

*

*

*

*

(1)

(1)

*

(1)

(1)

*

*

(2)

(2)

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