TDA8295_09 Datasheet, PDF (14/83 Pages) NXP Semiconductors – Digital global standard low IF demodulator for analog TV and FM radio

NXP Semiconductors
TDA8295
Digital global standard low IF demodulator for analog TV and FM radio
9.1.2 Read mode
S
BYTE 1
A
BYTE 2
A
S
start
address 0
ack
start index
ack start
Fig 5. I²C-bus Read mode
BYTE 3
address 1
A BYTE 4 A
ack value 1 ack ....
BYTE n
value n
A
P
ack stop
001aad423
Table 8.
Field
S
Byte 1
A
Byte 2
A
S
Byte 3
A
Byte 4
A
:
Byte n
A
P
I²C-bus transfer description
Bit
-
7 to 5
4
3 and 2
1
0
-
7 to 0
-
-
7 to 5
4
3 and 2
1
0
-
7 to 0
-
7 to 0
-
-
Description
START condition
device address
SADDR1
device address
SADDR0
R/W = 0 for write action
acknowledge
start index
acknowledge
START condition (without stop before)
device address
SADDR1
device address
SADDR0
R/W = 1 for read action
acknowledge
value 1
acknowledge
value n
acknowledge
STOP condition
S
BYTE 1
A
BYTE 2
A
S
BYTE 3
A
BYTE 4
start
1000 0100
ack
0000 0010
ack start
1000 0101
ack 0000 0101
Address 84h, read register 02h with value 05h and read register 03h with value 04h
Fig 6. Example I²C-bus Read mode
A
BYTE 5
ack 0000 0100
A
P
ack stop
001aah357
TDA8295_C2_2
Product data sheet
Rev. 02 — 27 November 2009
© NXP B.V. 2009. All rights reserved.
14 of 83