saa5261 NXP Semiconductors, saa5261 Datasheet - Page 8

• Manufacturer Part Number: saa5261
• Description: Saa5261; Saa5262; Saa5263 10-page Intelligent Teletext Decoders
• Manufacturer: NXP Semiconductors

Philips Semiconductors
HIGH LEVEL COMMAND INTERFACE
The I
microcontroller. The interface uses high level commands, which are backward compatible with the SAFARI interface.
The formats for the I
Table 1 User command
Table 2 System command
Table 3 System read
Table 4 I
Table 5 Control commands
1998 Apr 22
COMMAND
START
START
START
10-page intelligent teletext decoders
(HEX)
BYTE
2
1A
1B
1C
1D
1E
03
04
07
10
12
13
14
15
16
17
18
19
11
C-bus interface is used to pass control commands and data between the SAA526xPS and the television
ADDRESS
01 01 100
2
C-bus address
ADDRESS
ADDRESS
ADDRESS
I
I
I
2
2
2
C-bus
C-bus
C-bus
BYTE
DATA
2
C-bus transmission are as follows:
PIN 16 = LOW
WRITE
WRITE
READ
picture
TV status
time
program 0
program 1
program 2
program 3
program 4
program 5
program 6
program 7
program 8
program 9
program 10
program 11
program 12
program 13
program 14
read = 1; write = 0
DESCRIPTION
DESCRIPTION
COMMAND
ACK
ACK
ACK
COMMAND
8
COMMAND
DATA
COMMAND
(HEX)
BYTE
2B
2C
2D
1F
20
21
22
23
24
25
26
27
28
29
2F
30
31
32
ADDRESS
SAA5261; SAA5262; SAA5263
0110 000
ACK
BYTE
DATA
PIN 16 = HIGH
NACK
PARAMETER
ACK
program 15
red
green
yellow
subtitle
text status
hold
reveal
cancel
index
list toggle
reveal toggle
store
previous
subcode
digit 1
digit 2
digit 3
read = 1; write = 0
DESCRIPTION
Product specification
DESCRIPTION
COMMAND
ACK
STOP
STOP
STOP