saa7199b NXP Semiconductors, saa7199b Datasheet - Page 10

• Manufacturer Part Number: saa7199b
• Description: Digital Video Encoder Denc Genlock-capable
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 3 Address assignment
Table 4 Signals on the internal bus
Table 5 Signals on the internal bus
1996 Sep 27
R/W
C/T
D/A
DI/DO (0 to 7)
EN
INTERNAL PARALLEL BUS PARALLEL INTERFACE
R/W
C/T
A/T
DI/DO (0 to 7)
EN
Digital Video Encoder (DENC)
GENLOCK-capable
ADDRESS INPUTS
A1
0
0
1
1
SYMBOL
A0
0
1
0
1
select read/write (read = 1; write = 0)
control table/look-up table (control table = 1; look-up table = 0)
select data/address (data = 1; address = 0)
data bus on port inputs/outputs D7 to D0
enable from control interface to synchronize data transfer
R/W (pin 35)
A1 (pin 34)
A0 (pin 33)
D7 to D0
CS and R/W
I
2
C-BUS SUBADDRESS
00
01
02
03
10
LSB of slave address byte (read = HIGH; write = LOW)
X 4 subaddresses after decoding
X 4 subaddresses after decoding
data bits D7 to D0 for each subaddress
enable by every 9th clock of sample of SCL
(control of serial-to-parallel conversion)
ADR-CLUT (address register of look-up tables)
DATA-CLUT
ADR-CTRL (index register of control table)
DATA-CTRL
DESCRIPTION
I
2
C-BUS INTERFACE
SELECTION
Product specification
SAA7199B