saa7712h NXP Semiconductors, saa7712h Datasheet - Page 22

• Manufacturer Part Number: saa7712h
• Description: Sound Effects Dsp
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8.6.4
Both data and clock lines will remain HIGH when the bus is not busy. A HIGH-to-LOW transition of the data line, while
the clock is HIGH, is defined as a START condition (S). A LOW-to-HIGH transition of the data line while the clock is HIGH
is defined as a STOP condition (P) (see Fig.12).
8.6.5
A device generating a message is a ‘transmitter’ and a device receiving a message is the ‘receiver’. The device that
controls the message is the ‘master’ and the devices which are controlled by the master are the ‘slaves’.
1999 Aug 05
handbook, full pagewidth
handbook, full pagewidth
Sound effects DSP
S
D
SDA
SCL
TART AND STOP CONDITIONS
ATA TRANSFER
START condition
S
SDA
SCL
MSB
1
START condition
S
2
Fig.12 START and STOP conditions.
Fig.13 Data transfer on the I
7
acknowledgement
signal from receiver
8
22
ACK
9
byte complete
interrupt within receiver
clock line held LOW while
interrupts are serviced
2
C-bus.
1
2
STOP condition
3 to 8
P
signal from receiver
acknowledgement
Preliminary specification
MGS217
ACK
SAA7712H
9
MGS218