uda1384 NXP Semiconductors, uda1384 Datasheet - Page 21

• Manufacturer Part Number: uda1384
• Description: Multichannel Audio Coder-decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 14366
Product data sheet
10.10 Write and read data
10.8 Device address
10.9 Register address
A slave receiver which is addressed, must generate an acknowledge after the reception of
each byte. Also a master must generate an acknowledge after the reception of each byte
that has been clocked out of the slave transmitter.
The device that acknowledges has to pull down the SDA line during the acknowledge
clock pulse, so the SDA line is stable LOW during the HIGH period of the acknowledge
related clock pulse. Set-up and hold times must be taken into account. A master receiver
must signal an end of data to the transmitter by not generating an acknowledge on the last
byte that has been clocked out of the slave. In this event, the transmitter must leave the
data line HIGH to enable the master to generate a stop condition.
Before any data is transmitted on the I
addressed first. The addressing is always done with byte 1 transmitted after the start
procedure. The UDA1384 acts as a slave receiver or a slave transmitter.
Therefore, the clock signal SCL is only an input signal. The data signal SDA is a
bidirectional line. The UDA1384 device address is shown in
Table 17:
The register addresses in the I
register addresses are defined in
The I
respectively.
Device address
Fig 15. Acknowledge on the I
A6
0
2
C-bus configurations for a write and read cycle are shown in
by transmitter
data output
by receiver
data output
SCL from
I
2
master
C-bus device address of UDA1384
A5
0
condition
START
Rev. 02 — 17 January 2005
S
A4
1
2
C-bus
2
C-bus mode are the same as in the L3-bus mode. The
Section
1
A3
2
1
C-bus, the device which should respond is
11.
2
A2
0
Multichannel audio coder-decoder
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
not acknowledge
Table
A1
0
acknowledge
8
17.
Table 18
acknowledgement
clock pulse for
UDA1384
A0
0
9
and
mbc602
R/W
Table
0/1
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19,