STV9211 STMicroelectronics, STV9211 Datasheet - Page 19

• Manufacturer Part Number: STV9211
• Manufacturer: STMicroelectronics

Specifications of STV9211

• Lead Free Status / Rohs Status: Compliant

STV9211
2.17
2.18
Serial interface
The 2-wire serial interface is an I
The host MCU can write into the STV9211 Registers. Read mode is not available.
In order to write data into the STV9211, after the “start” message, the MCU must send the
following data (see
All bytes are sent with MSB bit first. The transfer of written data is ended with a “stop” message.
When transmitting several data, the Register addresses and data can be written with no need to
repeat the start and slave addresses.
Power-on reset
A power-on reset function is implemented on the STV9211 so that the I
determined status after power-on. The Power-on reset threshold for a rising supply on V
is 3.8 V (typ.) and 3.2V when the V
A6
1
the I
the byte to the internal Register address where the MCU wants to write data,
the data.
2
C address slave byte with a low level for the R/W bit,
A5
1
Figure 13
A4
0
):
2
C interface. The slave address of the STV9211 is DC hex.
CC
Figure 13: I
A3
decreases.
1
2
C write operation
A2
1
A1
1
2
C registers have a
Functional description
A0
0
W
CCA
0
(Pin 7)
19/37