MFC2000 datasheet(383/426 Pages) ETC

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Hardware Description

MFC 2000 Multifunctional Peripheral Controller 2000

100723A

Conexant

23-3

23.2 Register Description

Address:

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default:

P80CONTROL

0x01FF88E1

(not used)

Rst Value

xxh

Read Value

00h

Address:

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default:

P80CONTROL

0x01FF88E0

(not used)

SSD

Ringwaken

SSD

Raw_ringn

Ext

Raw_ringn

Ring_Sel[1:0]

EXTIA_

MODE

IA_SEL

Rst Value

xxxx0000b

Read Value

00h

Bit 15:7

Not used

Bit 6

This is read only bit which indicates status of ring envelope from SSD.

Bit 5

This is a read only bit which indicates raw ring signals from SSD.

Bit 4

This is a read only bit which indicates raw ring signals from external

DAA.

Bit 3:2

This control bits are used to select types of ring signals to be

connected to P80_CORE to perform ring detection.

“00” : No selection, logic ‘high’ will be driven to PB[3]_C of

P80_CORE.

“01” : SSD Raw_ringn is selected.

“10” : SSD Ringwaken is selected.

“11” : External DAA Raw_ringn is selected.

Bit 1

This bit controls muxing of output I/O pins. When asserted to high,

selected P80 core pins will be directed to external pin.

Bit 0

This bit controls muxing of primary and secondary I/O pins in P80

core. When asserted to high, secondary I/O will be selected.

MFC2000 Datasheet(PDF) 383 Page - List of Unclassifed Manufacturers

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