UM0193 datasheet(8/35 Pages) STMICROELECTRONICS

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Hardware

UM0193

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1.5

I²C interface

A 10-pin connector (J28) provides the Inter-Integrated Circuit (I²C) through the I2C0 channel

of the STR730F microcontroller as shown in Figure 8.

Connector J28 also provides additional general purpose signals (GP0, GP1 and GP2).

Figure 8.

I²C connector pinout

1.6

JTAG interface

A 20-pin connector (J7) provides the JTAG interface as shown in Figure 9.

This interface is primarily used for communicating with a PC using suitable converter box

such as J-Link from IAR Systems or R-Link from Raisonance, etc. There exists a wide

choice of development tools on the market supporting microcontroller Flash memory

programming and application debugging.

Figure 9.

JTAG connector pinout

Table 6.

I²C Connections

J28 Pin

Signal

STR730F MCU

Peripheral

1GND

2+5V DC

SDA (Serial Data)

Port 2.15

I2C0

Not connected

SCL (Serial Clock)

Port 2.14

I2C0

Not connected

GP0

Port 3.2

GPIO

GP1

Port 3.1

GPIO

GP2

Port 3.0

GPIO

Not connected

10 12 14

11 13 15

16 18 20

17 19

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