OM6274 NXP Semiconductors, OM6274 Datasheet - Page 4

• Manufacturer Part Number: OM6274
• Description: Interface Modules & Development Tools I2C to SPI Master Bridge Demoboard
• Manufacturer: NXP Semiconductors

Specifications of OM6274

• Interface Type: I2C, SPI
• Data Bus Width: 8 bit
• For Use With/related Products: SC18IS602IPW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
7. Functional description
SC18IS602_602B_603_4
Product data sheet
7.1 I
The SC18IS602/602B/603 acts as a bridge between an I
allows an I
The I
connected to the bus, and it has the following features:
A typical I
UM10204, “I
9398 393 40011.)
The SC18IS602/602B/603 device provides a byte-oriented I
data transfers up to 400 kHz. When the I
the device will be a slave-transmitter. The SC18IS60x will be a slave-receiver when the
I
however, it does have the ability to hold the SCL line LOW between bytes to complete its
internal processes.
2
2
Fig 4.
•
•
•
•
•
•
C-bus master is sending data. At no time does the SC18IS60x act as an I
C-bus interface
Bidirectional data transfer between masters and slaves
Multi-master bus (no central master)
Arbitration between simultaneously transmitting masters without corruption of serial
data on the bus
Serial clock synchronization allows devices with different bit rates to communicate via
one serial bus
Serial clock synchronization can be used as a handshake mechanism to suspend and
resume serial transfer
The I
2
C-bus uses two wires (SDA and SCL) to transfer information between devices
2
I
2
2
C-bus may be used for test and diagnostic purposes
2
C-bus configuration is shown in
C-bus configuration
C-bus master device to communicate with any SPI-enabled device.
2
C-bus specification and user manual” , document order number
I
2
C-bus
SC18IS602/602B/603
Rev. 04 — 11 March 2008
V
DD
R PU
2
C-bus master is reading data from SC18IS60x,
Figure
I
DEVICE
2
SC18IS602/602B/603
C-BUS
R PU
4. (Refer to NXP Semiconductors’
2
C-bus and an SPI interface. It
2
I
DEVICE
C-bus interface that supports
2
C-BUS
002aac445
I
2
C-bus to SPI bridge
SDA
SCL
© NXP B.V. 2008. All rights reserved.
2
C-bus master,
4 of 25