PCA84C441 PHILIPS [NXP Semiconductors], PCA84C441 Datasheet - Page 21

• Manufacturer Part Number: PCA84C441
• Description: 8-bit microcontrollers with OSD and VST
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
12.5
The display data registers consists of a group of 32 derivative registers located at addresses 20H to 3FH inclusive
(see Table 7). At power-up the contents of the display data registers are undefined.
The format of each display data register is shown in Table 8, and their functions described in Table 9.
Table 7 Display data registers addresses
Table 8 Display data register (address 20H to 3FH)
Table 9 Description of display data register bits
12.6
The display control registers consists of a group of 6 derivative registers located at addresses 40H to 45H inclusive
(see Table 10). Each register may be read from or written to. After a reset operation the contents of the display control
registers are zero.
Table 10 Display control registers addresses
1996 Nov 29
20H to 2FH
30H to 3FH
ADDRESS
ADDRESS
8-bit microcontrollers with OSD and VST
CC1
40H
41H
42H
43H
44H
45H
BIT
7
7
6
5
4
3
2
1
0
Display data registers
Display control registers
Row 0 = the first display row
Row 1 = the second display row
CC1
CC0
MD5
MD4
MD3
MD2
MD1
MD0
REGISTER
SYMBOL
LINE 0A
LINE 0B
LINE 1A
LINE 1B
OSDCA
OSDCB
CC0
DISPLAY DATA FOR
6
Colour code. The state of these two bits enable individual characters to be displayed in
one of four colours. See Tables 24, 25 and 26.
Character code.
The character set is stored in ROM and consists of 64 different characters.
The selection of each character is dependent on the state of the 6 bits, MD0 to MD5.
CDTW
CC34
BIT 7
SZ01
BLK0
BLK1
SZ11
MD5
5
CDTH
CC24
BIT 6
SZ00
SZ10
VB0
VB1
MD4
4
BIT 7
CC1
CC14
CC33
BIT 5
VP05
HP05
VP15
HP15
21
BIT 6
CC0
MD3
RBLK
HP04
CC23
HP14
BIT 4
VP04
VP14
3
DESCRIPTION
BIT 5
MD5
84C44X; 84C64X; 84C84X
ROUND
HP03
CC32
HP13
BIT 3
VP03
VP13
BIT 4
MD4
MD2
2
BIT 3
MD3
STBY
CC12
BIT 2
VP02
HP02
VP12
HP12
MD1
BIT 2
MD2
1
Product specification
CC21
BIT 1
VP01
HP01
VLVL
VP11
HP11
BIT 1
MD1
MD0
HP00
CC11
HP10
BIT 0
HLVL
VP00
VP10
0
BIT 0
MD0