MFC2000 datasheet(212/426 Pages) ETC

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MFC2000 Multifunctional Peripheral Controller 2000

Hardware Description

8-8

Conexant

100723A

Name/Address

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default

TADC Ch 2 Data

(TADCCh2Data)

$01FF8009

(Not Used)

Rst. Value

xxh

Read Value

00h

Name/Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

TADC Ch 2 Data

(TADCCh2Data)

$01FF8008

(Not Used)

Data[5]

(Read Only)

Data[4]

(Read Only)

Data[3]

(Read Only)

Data[2]

(Read Only)

Data[1]

(Read Only)

Data[0]

(Read Only)

Rst. Value

xx000000b

Read Value

00h

Bit 5-0

Data

This data is only valid when the auto mode is selected.

8.2.3

Firmware Operation

General setup:

Select the desired tadclk frequency

Select the desired mode of operation

In manual mode:

3mm. Select the right channel (“TADCCtrl[2:1]”)

4mm. Wait for at least “tadclk” period * 256 for TADC output to be stable

5mm. Read TADC data from “TADCInsData” register. (Then, go to step 3mm to select other channel)

In automatic mode:

3am. Select the desired update frequency (“TADCCtrl[4:3]”)

4am. Wait for at least TADC update period * 3 (only need to wait once after the above step. This wait guarantees

each channel has been selected and its value has been stored in the corresponding register)

5am. Read TADC data from “TADCCh1Data”, “TADCCh2Data”, “TADCCh3Data” at any time for latest data.

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