OM13006,598 NXP Semiconductors, OM13006,598 Datasheet - Page 110

• Manufacturer Part Number: OM13006,598
• Description: BOARD EVAL EM773 METER EU PLUG
• Manufacturer: NXP Semiconductors
• Type: Other Power Managementr

Specifications of OM13006,598

• Design Resources: Plug Meter Schematics, Gerber Files USB Dongle Schematics, Gerber Files
• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: EM773FHN33,551
• Interface Type: USB
• Maximum Operating Temperature: + 150 C
• Operating Supply Voltage: 1.8 V to 3.6 V
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Primary Attributes: -
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: EM773, OL2381
• Other names: 568-6681

NXP Semiconductors
10.10 I
UM10415
User manual
2
C implementation and operation
10.9.4 Slave Transmitter mode
The first byte is received and handled as in the slave receiver mode. However, in this
mode, the direction bit will be 1, indicating a read operation. Serial data is transmitted via
SDA while the serial clock is input through SCL. START and STOP conditions are
recognized as the beginning and end of a serial transfer. In a given application, I
operate as a master and as a slave. In the slave mode, the I
slave address and the General Call address. If one of these addresses is detected, an
interrupt is requested. When the microcontrollers wishes to become the bus master, the
hardware waits until the bus is free before the master mode is entered so that a possible
slave action is not interrupted. If bus arbitration is lost in the master mode, the I
interface switches to the slave mode immediately and can detect its own slave address in
the same serial transfer.
Figure 20
describes the individual blocks.
Fig 18. Format of Slave Receiver mode
Fig 19. Format of Slave Transmitter mode
S
from Master to Slave
from Slave to Master
S
from Master to Slave
from Slave to Master
shows how the on-chip I
SLAVE ADDRESS
SLAVE ADDRESS
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 10 September 2010
RW=1
RW=0
2
C-bus interface is implemented, and the following text
A
A
DATA
DATA
A = Acknowledge (SDA low)
A = Not acknowledge (SDA high)
S = START condition
P = STOP condition
Sr = Repeated START condition
A = Acknowledge (SDA low)
A = Not acknowledge (SDA high)
S = START condition
P = STOP condition
Chapter 10: EM773 I2C-bus interface
n bytes data transmitted
n bytes data received
A
A
2
C hardware looks for its own
DATA
DATA
UM10415
© NXP B.V. 2010. All rights reserved.
A/A
A
2
C
2
110 of 310
C may
P/Sr
P