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WM8255 датащи(PDF) 45 Page - Cirrus Logic

номер детали WM8255
подробное описание детали  Single Channel 16-bit CIS/CCD AFE with RGB LED Current Drive
PDF  49 Pages
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производитель  CIRRUS [Cirrus Logic]
домашняя страница  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8255 датащи(HTML) 45 Page - Cirrus Logic

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WM8255
Production Data
w
PD, Rev 4.7, August 2013
45
EXTENDED PAGE REGISTER MAP DESCRIPTION
REGISTER
BIT
NO
BIT NAME(S)
DEFAULT
DESCRIPTION
LED Control
1:0
Reserved
0
Must be set to zero
5:2
LED_TESTCTRL
[3:0]
0000
General LED test modes:
LED_TESTCTRL[1:0] = Mode override. The IDAC can be forced into
one of three modes:
01 = IDAC_LOAD: IDAC is loaded with new current value (based on
the current state), and CHANGE_SETUP & IDAC_DISABLE are high.
10 = IDAC_CHECK: RGB switch is enabled (based on current state)
and IDAC_CALIBRATE is set high. Current setting will not change
unless test load is enabled.
11 = IDAC_ON: IDAC is fully out of reset. PWM_LEDON will still be
driven by the counters unless the test override is used. Current setting
will not change unless test load is enabled.
LED_TESTCTRL[2] = Test update. The current setting is continuously
reloaded (from Red register when machine in reset).
LED_TESTCTRL[3] = PWM test enable. PWM_LEDON is now driven
using the LEDSTART pin.
7:6
Reserved
00
Must be set to zero
Revision
Number
0
Reserved
X
This bit should be ignored
7:1 REV_NUM
[6:0]
Revision Number of device
Table 11 Extended Page Register Bits



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