
1995 Nov 27
16
Philips Semiconductors
Product specification
Stand-alone OSD
PCA8514
9.1
Command 0
Table 9
Command 0 format
Command 0 is used to select the Command Bank. Bits
BS1 and BS0 are the two flags that indicate the current
Command Bank being executed. During a master reset
these two bits are cleared (BS1 = 0, BS0 = 0). Each
command has its own associated Command Bank, this is
shown in Table 8.
9.2
Command 1
Command 1 is not used in the PCA8514.
9.3
Command 2
Table 10
Command 2 format
This command writes character attribute data into the DCR
Attribute Register. The actual character attribute is
dependent upon the code selected by Command 5.
Sections 9.3.1 to 9.3.2 define the character attribute data
loaded by Command 2 when Command 5 selects either a
Character Font Code, a Carriage Return Code or a Space
code. See Tables 2, 3 and 4 for the three code formats.
9.3.1
C
HARACTER
F
ONT
C
ODE ATTRIBUTES
Command 2 when used in conjunction with a Character
Font Code (00H to 7CH) will select 1 of 16 foreground
colours and enables/disables the Blinking function.
7
6
5
4
3
2
1
0
0
1
1
1
1
0
BS1
BS0
BS1
BS0
7
6
5
4
3
2
1
0
X
0
0
0
0
T4
T3
T2
T1
T0
Table 11
Selection of Foreground colour
Table 12
Selection of Blinking function
T4
T3
T2
T1
R
G
B
I
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
T0
BLINKING
0
1
OFF
ON