STEVAL-IFS012V1 STMicroelectronics, STEVAL-IFS012V1 Datasheet - Page 106

• Manufacturer Part Number: STEVAL-IFS012V1
• Description: BOARD ST72651AR6/STTS75/STLM20
• Manufacturer: STMicroelectronics

Specifications of STEVAL-IFS012V1

• Sensor Type: Temperature
• Sensing Range: Depends on IC
• Interface: I²C, USB
• Sensitivity: Depends on IC
• Voltage - Supply: 5V
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ST72F651AR6, STTS75, STLM20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8419

ST72651AR6
I²C SINGLE MASTER BUS INTERFACE (Cont’d)
Acknowledge may be enabled and disabled by
software.
The speed of the I
between Standard (up to 100KHz) and Fast I
(up to 400KHz).
SDA/SCL Line Control
Transmitter mode: the interface holds the clock
line low before transmission to wait for the micro-
controller to write the byte in the Data Register.
Receiver mode: the interface holds the clock line
low after reception to wait for the microcontroller to
read the byte in the Data Register.
Figure 63. I
106/161
SDA or SDAI
SCL or SCLI
2
C Interface Block Diagram
2
C interface may be selected
CLOCK CONTROL
CLOCK CONTROL REGISTER (CCR)
DATA CONTROL
STATUS REGISTER 1 (SR1)
STATUS REGISTER 2 (SR2)
CONTROL REGISTER (CR)
Doc ID 7215 Rev 4
2
C
The SCL frequency (F
grammable clock divider which depends on the
I
When the I2C cell is enabled, the SDA and SCL
ports must be configured as floating inputs. In this
case, the value of the external pull-up resistance
used depends on the application.
When the I2C cell is disabled, the SDA and SCL
ports revert to being standard I/O port pins.
2
C bus mode.
DATA SHIFT REGISTER
DATA REGISTER (DR)
CONTROL LOGIC
INTERRUPT
scl
) is controlled by a pro-