VDP 31xxB
PRELIMINARY DATA SHEET
2
I C sub
Number
Mode
Function
Default
Name
address of bits
DISPLAY CONTROLS
h’52
h’4e
h’4a
9
9
9
w v
w v
w v
cutoff Red
cutoff Green
cutoff Blue
0
0
0
CR
CG
CB
TUBE AND PICTURE MEASUREMENT
h’7b
h’6b
h’7f
9
9
9
8
w v
w v
w v
w/r
picture measurement start line
bit [8:0] (TML+9)..511 first line of picture measurement
23
PMST
PMSO
TML
picture measurement stop line
bit [8:0] (PMST+1)..511 last line of picture measurement
308
tube measurement line
bit [8:0] 0..511 start line for tube measurement
15
0
h’25
tube and picture measurement control
PMC
bit [0]
bit [1]
0/1
0/1
disable/enable tube measurement
80/40 kHz bandwidth for
TMEN
PMBW
picture measurement
bit [2]
0/1
disable/enable picture measurement
(writing a ’1’ starts one measurement
cycle)
PMEN
PMWIN
OFSEN
bit [3]
0/1
0/1
large/small picture measurement window,
will be disabled from bit[3] in address h’32
measure / offset check for adc
reserved
bit [4]
bit [7:5]
h’13
16
w/r
white drive measurement control
bit [9:0]
0..1023 RGB values for white drive beam current
512
0
WDRV
EWDM
measurement
bit [10]
bit [11]
reserved
0/1
RGB values for white drive beam current
measurement disabled/enabled
8
r
measurement result registers
minimum in active picture
–
h’18
h’19
h’1a
h’1d
h’1c
h’1b
MRMIN
MRMAX
MRWDR
MRCR
MRCG
MRCB
maximum in active picture
white drive
cutoff/leakage red
cutoff/leakage green
cutoff/leakage blue,
read pulse starts tube measurement
h’1e
8
r
measurement adc status and fast blank input status
–
PMS
measurement status register
bit [0]
bit [2:1]
0/1
tube measurement active / complete
white drive measurement cycle
00
01
10
11
0/1
0/1
1
red
green
blue
reserved
bit [3]
bit [4]
bit [5]
picture measurement active / complete
fast blank input low / high (static)
fast blank input negative transition since
last read (bit reset at read)
reserved
bit [7:6]
36
Micronas
MICRONAS [ MICRONAS ]
