OM6271 NXP Semiconductors, OM6271 Datasheet - Page 16

• Manufacturer Part Number: OM6271
• Description: Interface Modules & Development Tools SPI to I2C Master Bridge Demoboard
• Manufacturer: NXP Semiconductors

Specifications of OM6271

• Interface Type: I2C, SPI
• Data Bus Width: 8 bit
• For Use With/related Products: SC18IS601IPW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
SC18IS600_601_5
Product data sheet
6.6.7 Write to SC18IS600/601 internal registers
6.6.8 Read from SC18IS600/601 internal register
A Write Register function is initiated by sending a 0x20 command followed by an internal
register address to be written (see
address. Only one register can be accessed in a single transaction. There is no
auto-incrementing of the register address.
A Read Register function is initiated by sending a 0x21 command followed by an internal
register address to be read (see
read register is returned by the SC18IS600 on the MISO pin. Only one register can be
accessed in a single transaction. There is no auto-incrementing of the register address.
Note that write and read from internal registers are processed immediately as soon as the
SC18IS600/601 determines the intended register.
Fig 19. Write to SC18IS600/601 internal registers
Fig 20. Read from SC18IS600/601 internal register
SPI host sends
SPI host sends
COMMAND
COMMAND
SCLK
SCLK
MOSI
MOSI
MISO
0x20
CS
0x21
CS
REGISTER
Rev. 05 — 28 July 2008
character 0x20
character 0x21
REGISTER
X
X
Section
Section
DATA
BYTE
REGISTER
DATA
6.1) and a dummy byte. The data byte of the
6.1). The register data byte follows the register
register X
register X
SC18IS600/601
dummy byte
data byte
data byte
SPI to I
002aab723
002aab724
© NXP B.V. 2008. All rights reserved.
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C-bus interface
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