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| TDA4886 Datasheet, PDF (31/52 Pages) NXP Semiconductors – 140 MHz video controller with I2C-bus | |||
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Philips Semiconductors
140 MHz video controller with I2C-bus
Product speciï¬cation
TDA4886
handbook, full pagewidth
START
LOAD PRESET CONTROL BITS
FPOL
PEDST
DISV = 1
DISO = 1
BLH2
BLH1
load from program
ROM code or EEPROM
LOAD FACTORY SETTINGS
GAIN
(CHANNEL 1, 2, 3)
FEEDBACK REFERENCES
(CHANNEL 1, 2, 3)
load from EEPROM
LOAD USER PRESET VALUES
CONTRAST
BRIGHTNESS
OSD CONTRAST
load from EEPROM
DEFLECTION
no
CONTROL
IC LOCKED
yes
DISV = 0
DISO = 0
DISPLAY NEW MODE(1)
DISO = 1
USER INPUT
no
yes
DISO = 0
RESPONSE TO USER INPUTS(2)
(CONTRAST, BRIGHTNESS, OSD CONTRAST)
DISO = 1
(1) Only synchronized video should
be displayed. Each new mode
can be displayed by OSD.
(2) Data transmission should be
synchronized with vertical
blanking of the monitor.
1998 Nov 11
DEFLECTION
CONTROL
IC LOCKED
yes
no
DISV = 1
MHB194
Fig.14 I2C-bus control flow.
31
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