AS7265X datasheet(42/64 Pages) OSRAM

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ams Datasheet

Page 41

[v1-04] 2018-Jul-09

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AS7265x − Detailed Description

UART Command Interface

If selected by the I2C_ENB pin setting, the UART module imple-

ments the TX and RX signals as defined in the RS-232 / V.24

standard communication protocol. Serial flash EPROM is a re-

quired operating companion device to enable the UART com-

mand interface.

Figure 56:

Flash Memory Overview

Note(s):

1. Where xx= alternative packages.

UART Feature List

• Full duplex operation (independent serial receive and

transmit registers).

• Factory set to 115.2k Baud

• Supports serial frames with 8 Data Bits, no Parity and 1

Stop Bit.

Operation

Transmission

If data is available in the transmit FIFO, it will be moved into the

output shift register and the data will be transmitted at the

configured Baud Rate, starting with a Start Bit (logic zero) and

followed by a Stop Bit (logic one).

Reception

At any time, with the receiver being idle, if a falling edge of a

start bit is detected on the input, a byte will be received and

stored in the receive FIFO. The following Stop Bit will be checked

to be logic one.

Serial Flash

Manufacturer

AT25SF041xx

Adesto Technologies

AT25DF041xx

Adesto Technologies

MX25L4006ExxI-12G

Macronix

SST25PF040C

Microchip Technology

W25X40CLSNIG

Winbond Electronics

LE25U40CMD

ON Semiconductor

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