NT68520XF Datasheet, PDF (41/97 Pages) List of Unclassifed Manufacturers – XGA,SXGA Flat Panel Monitor Controller

1: Enable
Default：XXX0 0000B
NT68520X,E
1FH: Auto Calibration Status (R)
Bits Name
Description
D7-4 AUTO_DIFF Difference between Detected H width and H Reference Count 0000(0) ~
[3:0]
1111(15) = | Detected H width - H Reference Count |, Value 1111 means the
difference ≥ 15
D3-2 AUTO_P_COM Auto Position comparing result for comparing the H Reference Count with
P
the detected H Active Count. It is useful for input pixel clock detection.
[1:0]
00: Detected H width < H Reference Count (F/W should Increase the PLL
divider value)
01: Detected H width = H Reference Count
10: Detected H width > H Reference Count (F/W should decrease the PLL
divider value)
11: Reserved
D1
Reserved
D0 AUTO_RDY Auto Gain/Position ready flag. User should clear this bit after reading the
status register to restart the next auto-calibration cycle.
0: Not ready
1: Ready
Default：XXXX XXXXB
1FH: Auto Calibration Status (W)
Bits Name
D7-1
D0 CLR_RDY
Description
Reserved
Writing this register will clear AUTO_RDY bit.
Default: XXXX XXXXB
AUTO PHASE
20H: Auto Phase/Histogram Calibration Control (R/W)
Bits Name
Description
D7-6
Reserved
D5-4 SEL_CAL_CH Select Auto Phase or Auto Histogram calibration channels
00: R&G&B channel (Auto phase)
01: R channel (Auto Phase / Histogram)
10: G channel (Auto Phase / Histogram)
11: B channel (Auto Phase / Histogram)
D3-2 SEL_CAL_MET Select Auto Phase or Auto Histogram calibration method
HOD
00: Auto Phase
01: Reserve
10: Auto Histogram method 0 (Low Bound(more than threshold value
amount of pixel)), the threshold defined in CR27
11: Auto Histogram method 1 (High Bound(less than threshold value
amount of pixel))
2003/4/15
41
Ver.1.0