PN7160B - CPOL Configuration

[michael_d_1983]

Hello,

As described in PN7160 Datasheet, 11.2.2.2 SPI-bus configuration options:

In order to select SPI-bus interface for host communication, some EEPROM settings are
programmed during production.
Four versions can be configured depending on CPOL/CPHA EEPROM setting.
The selection between interfaces is fused during IC manufacturing so that different
ordering numbers for the SPI-bus version.

I have not found any information on different ordernumbers that affect the settings.
Is this an error?

Thanks,

Michael

[Fabian_R · Accepted solution]

Hello sir,

Unfortunately, the datasheet needs an update. The PN7160 is configured as follows:

CPHA=0

IFSEL1=0

I hope this information may have been useful.

[Erklei]

I think only I2C vs SPI is programmed during manufacturing. Part number ending with "A" is I2C and "B" is SPI. Clock polarity can be changed later