mc33702 Freescale Semiconductor, Inc, mc33702 Datasheet - Page 21

• Manufacturer Part Number: mc33702
• Description: 3.0 A Switch-mode Power Supply With Linear Regulator
• Manufacturer: Freescale Semiconductor, Inc

Communication Stop
STOP condition. The slave waits for this condition to resume its
initial state waiting for the next START condition (see
Figure
Data Transfer Example
addressing a 33702 slave IC in writing mode (R/W = 0) in order
to be able to write a Command Byte just after the address
acknowledge. I
master-transmitter and slave-receiver configuration.
operation (e.g., Voltage Margining, see
master will keep the data transfer direction.
slave address, the first command for voltage margining, and a
third byte containing the address field 001 and the value field
00101 corresponding with the LDO fifth setting (LDO output
voltage = +5% above its nominal value). If a simultaneous
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
Only the master can terminate the data transfer by issuing a
The master device controlling the I
Eventually this Command Byte can again define a Write
Figure 19
19).
illustrates a communication beginning with the
2
C bus protocol defines this circumstance as a
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2
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C bus will always start
Figure
19), and the
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setting for switcher is needed, a fourth byte should be included
before the STOP condition (P); for instance, 001 10010 to set
switcher in its second setting (switcher output voltage = +2%
above its nominal value).
START
S
A6
Figure 19. Complete Data Transfer Example
A5
First Command for Voltage Margining
Slave Address
A4
0
A3 A2 A1
0
Address Field Value Field = LDO
1
0
0
0
A0
0
1
0
0
Write
0
Ack
5
0
th
Setting
0
0
Ack
1
0
1
Ack
STOP
33702
P
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