MFC2000 datasheet(163/426 Pages) ETC

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Hardware Description

MFC 2000 Multifunctional Peripheral Controller 2000

100723A

Conexant

7-15

Bits 10-8 clock divider[2:0]

The clock used for PWM is scaled according to “clock divider” setting.

Bits 7-0

duty cycle[7:0]

The period of PWM is divided into 256. The high time of PWM is

determined by “duty cycle”.

Note: In order to have a non-modulated signal, the duty cycle must be set to 0xFF.

Name/Address

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default

LEDCtrl Config

(LEDConfig)

$01FF88B9

(Not Used)

(Not Used) Rst. Value

xx000111b

Read Value

07h

Name/Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

LEDCtrl Config

(LEDConfig)

$01FF88B8

(Not Used)

(Not Used) LEDCtrl[2]

sync_select

LEDCtrl[1]

sync_select

LEDCtrl[0]

sync_select

LEDCtrl[2]

position

LEDCtrl[1]

position

LEDCtrl[0]

position

Rst. Value

xx000000b

Read Value

00h

Bits 5-3

LEDCtrl[2:0] sync_select

1 = sync is selected, ignoring LED PWM config & LED Edges settings

0 = normal LEDCtrl

When sync_select bit is set and the LED is enabled (by setting the

corresponding bit in ScanCtrl register), then the LEDCtrl will be active

from the beginning of scancycle until the end of scancycle. In this

mode of operation, the corresponding LED PWM & LED Edges

settings are ignored. Once the LED is disabled, then at the end of

scancycle, the LEDCtrl will not be active anymore. In other words, by

setting sync_select bit, the LEDCtrl is outputing the LED enabled

which is synchronized with the cyclestart.

When sync_select bit is clear and the LED is enabled, then the

LEDCtrl operates in normal mode, which depends on the LED PWM &

LED Edges settings.

Bits 2-0

LEDCtrl[2:0] position

1 = before ScanStartDelay

0 = after ScanStartDelay

This position setting only affects the leading edge of LEDCtrl

envelope. If the place bit is reset, then the LEDCtrl will be activated

after valid pixel. Otherwise, if the place bit is set, then LEDCtrl can be

activated right after scancycle.

Name/Address

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default

Scan IA Config

(ScanIAConfig)

$01FF88BB

ADC

enable

(Not Used)

OffsetSel[5] OffsetSel[4] OffsetSel[3] OffsetSel[2] OffsetSel[1]

OffsetSel[0] Rst. Value

xxx00000b

Read Value

00h

Name/Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

Scan IA Config

(ScanIAConfig)

$01FF88BA

(Not Used)

GPO

EV_VD[5]

GPO

EV_VD[4]

GainSel[3]

GainSel[2]

GainSel[1]

GainSel[0]

Rst. Value

x0h

Read Value

00h

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