TEA6845AH Просмотр технического описания (PDF) - Philips Electronics
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TEA6845AH Datasheet PDF : 48 Pages
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Philips Semiconductors
New In Car Entertainment (NICE) car radio
Product specification
TEA6845AH; TEA6845H
12.2 I2C-bus protocol
12.2.1 DATA TRANSFER MODE AND IC ADDRESS
Table 1 Write mode
S(1)
address (write)
A(2)
data byte(s)
A(2)
P(3)
Table 2 Read mode
S(1)
address (read)
A(2)
Notes to Tables 1 and 2
1. S = START condition.
2. A = acknowledge.
3. P = STOP condition.
data byte 1
Table 3 IC address byte
IC ADDRESS
1
1
0
0
0
Notes
1. Defined by address pin fref:
a) 1 = 1st IC address
b) 0 = 2nd IC address.
2. Read or write mode:
a) 0 = write operation to TEA6840H
b) 1 = read operation from TEA6840H.
MODE
0
0/1(1)
R/W(2)
12.2.2 WRITE MODE: DATA BYTE 1
Table 4 Format of data byte 1
BIT 7
AF
BIT 6
PCA6
BIT 5
PCA5
BIT 4
PCA4
BIT 3
PCA3
BIT 2
PCA2
BIT 1
PCA1
BIT 0
PCA0
Table 5 Description of data byte 1 bits
BIT
7
6 to 0
SYMBOL
AF
PCA[6:0]
DESCRIPTION
Alternative frequency. If AF = 0, then normal operation. If AF = 1, then AF (RDS)
update mode.
Setting of programmable counter of synthesizer PLL. Upper byte of PLL divider
word.
2001 Apr 12
29
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