TDA9950TT/C2 NXP Semiconductors, TDA9950TT/C2 Datasheet - Page 12

• Manufacturer Part Number: TDA9950TT/C2
• Manufacturer: NXP Semiconductors

Specifications of TDA9950TT/C2

• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Package Type: TSSOP
• Pin Count: 20
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
TDA9950_2
Product data sheet
Fig 6.
Fig 7.
Fig 8.
S
from master to slave
SLAVE ADDRESS
A = acknowledge (SDA = LOW)
S = START condition
P = STOP condition
R = read
W = write
Host reads CEC Address ACK registers - after setting address pointer
A = acknowledge (SDA = LOW)
S = START condition
P = STOP condition
W = write
Host writes CEC Configuration Register - after setting address pointer
A = acknowledge (SDA = LOW)
A = not acknowledge (SDA = HIGH)
P = STOP condition
Host writes last three CEC Data Registers
8.6.1 Notes on writing the CEC Data Registers
'0' (write)
•
W
.....
S
The CEC Data Registers should be written starting from the first CEC Data Register,
for the number of registers indicated by the contents of that first CEC Data Register, in
one contiguous operation.
A
write address pointer
from master to slave
from master to slave
write data 17h
SLAVE ADDRESS
<DATA 17h>
from slave to master
0000 0100
Sr = repeated START condition
A
Rev. 02 — 22 October 2009
A
'0' (write)
Sr
W
write data 18h
<DATA 18h>
A
SLAVE ADDRESS
write address pointer
from slave to master
from slave to master
0000 0110
A
A
write data 19h
'1' (read)
<DATA 19h>
R
write config
<CCONR>
A
read address H
<ACKH>
001aag928
001aag929
A
A
P
P
A
CEC/I
....
read address L
TDA9950
© NXP B.V. 2009. All rights reserved.
2
C-bus translator
<ACKL>
001aag927
A
12 of 22
P