VDP 31xxB
PRELIMINARY DATA SHEET
2
I C Sub Number
address of bits
Mode
Function
Default Name
SYNC GENERATOR
h’21
h’29
16
w/r
w/r
LINE LENGTH:
bit[10:0]
LINE LENGTH register
1295
LINLEN
LINE LENGTH has to be set to 1295 for
correct adjustment of vertical signals.
reserved (set to 0)
bit[15:11]
16
AVO STOP:
bit[10:0]
AVSTOP
reserved (set to 0)
disable/enable test pattern generator
luma output mode:
Y = rampe (240 ... 17)
Y = 16
Y = 90
Y = 240
0
0
0
bit[11]
0/1
COLBAREN
LMODE
bit[13:12]
00
01
10
11
bit[14]
bit[15]
0/1
0/1
reserved (set to 0)
chroma output: pseudo color bar/zero
0
0
CMODE
NEWLIN
h’22
16
w/r
NEWLINE:
bit[10:0]
NEWLINE register
50
This register defines the readout start of
the next line in respect to the value of the
sync counter. Value of this register must
be greater than 31 for correct operation.
reserved (set to 0)
bit [15:11]
32
Micronas