
Hardware Description
MFC 2000 Multifunctional Peripheral Controller 2000
100723A
Conexant
7-15
Bits 10-8 clock divider[2:0]
Bits 7-0
duty cycle[7:0]
The clock used for PWM is scaled according to “clock divider” setting.
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)
(Not Used)
(Not Used)
(Not Used)
(Not Used)
(Not Used)
(Not Used)
Rst. Value
xx000111b
Read Value
07h
Name/Address
LEDCtrl Config
(LEDConfig)
$01FF88B8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Default
Rst. Value
xx000000b
Read Value
00h
(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
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.
1 = before ScanStartDelay
0 = after ScanStartDelay
Bits 2-0
LEDCtrl[2:0] position
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
Scan IA Config
(ScanIAConfig)
$01FF88BB
Bit 15
ADC
enable
Bit 14
(Not Used)
Bit 13
OffsetSel[5]
Bit 12
OffsetSel[4] OffsetSel[3]
Bit 11
Bit 10
OffsetSel[2]
Bit 9
Bit 8
Default
OffsetSel[1]
OffsetSel[0] Rst. Value
xxx00000b
Read Value
00h
Name/Address
Scan IA Config
(ScanIAConfig)
$01FF88BA
Bit 7
Bit 6
Bit 5
GPO
on
EV_VD[5]
Bit 4
GPO
on
EV_VD[4]
Bit 3
Bit 2
Bit 1
Bit 0
Default
Rst. Value
x0h
Read Value
00h
(Not Used)
(Not Used)
GainSel[3]
GainSel[2]
GainSel[1]
GainSel[0]