L64780 LSI Logic Corporation, L64780 Datasheet - Page 119

• Manufacturer Part Number: L64780
• Description: Dvb-t Cofdm Demodulator Technical Manual 2/00
• Manufacturer: LSI Logic Corporation

A.2 Programming the Slave Address Using the Serial Bus
A.2.1 Write Cycle Using the Serial Bus
A general call (Master issues a start condition followed by eight zeroes)
is used to address every device on the serial bus. Any device that
requires information to be supplied through this general call must
acknowledge the cycle.
Figure A.2
The following steps describe a write cycle using the serial bus.
1. The cycle is started by the Master issuing a start condition.
2. The 7-bit slave address is transmitted.
3. The R/W bit is reset to 0 and transmitted, indicating a write cycle.
4. The addressed Slave acknowledges the reception of the slave
5. The Master sends the 8-bit address.
6. The addressed Slave acknowledges the reception of the address by
7. The Master sends the 8-bit data.
8. The addressed Slave acknowledges the reception of the data by
9. The Master terminates the cycle by issuing a stop condition.
Programming the Slave Address Using the Serial Bus
S: Start Condition
A: Acknowledge Cycle
X: Don’t Care
S
0
address by driving SDA LOW in the ACK cycle.
driving SDA LOW in the ACK cycle.
driving SDA LOW in the ACK cycle.
General Call Addr.
0 0 0 0
General Call Address
0 0 0
A
X
X X X X
X
X 0
A
A-3