MFC2000 datasheet(279/426 Pages) ETC

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Hardware Description

MFC 2000 Multifunctional Peripheral Controller 2000

100723A

Conexant

14-13

Address

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default

T4 Data FIFO Data

Port Transfer

(T4Data1PortTfr)

$01FF814F (DW)

(Not Used)

Rst. Value

xxh

Read Value:

xxh

Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

T4 Data FIFO Data

Port Transfer

(T4Data1PortTfr)

$01FF814E (DW)

(Not Used)

Rst. Value

xxh

Read Value

xxh

Bit 15-0:

Not used.

Writing any value to this register causes the data in FIFO to push or

pop data through the FIFO data port and the FIFO Quad Halfword 1-4

registers. The FIFO operation depends on the direction of data flow. If

the compressor/decompressor is emptying the FIFO, data is

transferred from the FIFO data port register to the FIFO Quad

Halfword 1 register, simultaneously with data transfer from Quad

Halfword 1 to Quad Halfword 2, Quad Halfword 2 to Quad Halfword 3,

and Quad Halfword 3 to Quad Halfword 4, with the original data of

Quad Halfword 4 being lost. If the compressor/decompressor is filling

the FIFO, data is transferred from the FIFO Quad Halfword 1 register

to the FIFO data port register, simultaneously with data transfer from

Quad Halfword 2 to Quad Halfword 1, Quad Halfword 3 to Quad

Halfword 2, and Quad Halfword 4 to Quad Halfword 3, with the

contents of Quad Halfword 4 becoming indeterminate.

T.4 Ref. Line Data FIFO Data Port for the Uncoded data to/from the external memory:

Address:

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default:

T.4 Ref. Line Data

FIFO Data Port

(T4RefDataPort)

$01FF815D

data bit 15

data bit 14

data bit 13

data bit 12

data bit 11

data bit 10

data bit 9

data bit 8

Rst Value

xxh

Read Value

xxh

Address:

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default:

T.4 Ref. Line Data

FIFO Data Port

(T4RefDataPort)

$01FF815C

data bit 7

data bit 6

data bit 5

data bit 4

data bit 3

data bit 2

data bit 1

data bit 0

Rst Value

xxh

Read Value

xxh

Address

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default

T4 Ref. Line Data

FIFO Data Port

Transfer

(T4RefDataPortTfr)

$01FF815F (DW)

(Not Used)

Rst. Value

xxh

Read Value:

xxh

Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

T4 Ref. Line Data

FIFO Data Port

Transfer

(T4RefDataPorTfrt)

$01FF815E (DW)

(Not Used)

Rst. Value

xxh

Read Value

xxh

MFC2000 Datasheet(PDF) 279 Page - List of Unclassifed Manufacturers

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