TDA8417 Philips Semiconductors, TDA8417 Datasheet - Page 11

• Manufacturer Part Number: TDA8417
• Description: TV and VTR stereo/dual sound processor with integrated filters and I2C-bus control
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Writing to the TDA8417
Writing to the TDA8417 means, writing to either the switch register or the mute and port control register. Which one is to
be addressed is defined by the subaddress (the second byte) as illustrated by Fig.6 below. The third byte contains the
information to be stored in the specified register.
Table 4 defines the contents of the mute and port control register.
Table 4 Mute and port control register
Note
1. X = don’t care
September 1989
TV and VTR stereo/dual sound processor
with integrated filters and I
Where:
S = start bit
A = acknowledge bit
P = stop bit
D7
X
X
X
X
X
X
X
X
D6
X
X
X
X
X
X
X
X
D5
X
X
X
X
X
X
X
X
D4
CR3
0
1
D3
CR21
0
0
1
(1)
2
C-bus control
D2
CR20
0
1
X
Fig.6 Write format.
D1
CR11
0
0
1
11
D0
CR10
0
1
X
DEFINITION
control port C1 = LOW
control port C1 = HIGH
control port C1 = high impedance
control port C2 = LOW
control port C2 = HIGH
control port C2 = high impedance
mute is active when pin 18 is LOW (default)
mute is active when pin 18 is HIGH
Preliminary specification
TDA8417