saa5252 NXP Semiconductors, saa5252 Datasheet - Page 14

• Manufacturer Part Number: saa5252
• Description: Line Twenty-one Acquisition Display Litod
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 8 Display modes
Table 9 Enhanced caption modes
Description of READ registers
The read subaddresses auto increment from 80H through to 82H at which point they stay until a new read subaddress
is sent.
All the bits in Table 10 are reset to logic 0 after the register is read.
Table 10 Register 80H READ (status)
Table 11 Register 81H READ (first data byte)
Note
1. In the Line 21, specification data bits are numbered D1 to D8.
Table 12 Register 82H READ (second data byte)
Note
1. In the Line 21, specification data bits are numbered D1 to D8.
1996 Jul 18
Video only
Text mode
Normal caption mode
Enhanced caption mode
Enhanced caption modes
Shadowed character/Video background
Shadowed character/Mesh background
Normal character/Video background
Normal character/Mesh background
D0
D1
D2
D3
D7
D0 to D6
D7
D0 to D6
D7
Line twenty-one acquisition and display (LITOD)
BIT
BIT
BIT
Data ready (new data has been acquired).
Parity error shut-down, goes HIGH when SAA5252 has a parity shut-down condition.
Indicates the following bytes are extended data service bytes.
Indicates Field 1 or Field 2 data bytes.
Indicates Power-On Reset (POR) has occurred, all I
Data Bit 1 to Data Bit 7 (see note 1).
Parity error flag bit. Bit goes HIGH when a parity error has occurred.
Data Bit 1 to Data Bit 7 (see note 1).
Parity error flag bit. Bit goes HIGH when a parity error has occurred.
ENHANCED CAPTION MODES
DISPLAY MODE OPTIONS
DESCRIPTION
DESCRIPTION
DESCRIPTION
14
2
C-bus write registers have been reset to logic 0.
EN1
EN1
M1
0
0
1
1
0
0
1
1
Product specification
SAA5252
EN0
EN0
M0
0
1
1
1
0
1
0
0