ST92F150-EVAL STMicroelectronics, ST92F150-EVAL Datasheet - Page 12

• Manufacturer Part Number: ST92F150-EVAL
• Description: BOARD EVALUATION FOR ST9 SERIES
• Manufacturer: STMicroelectronics

Specifications of ST92F150-EVAL

• Processor To Be Evaluated: ST90158 and ST92F1x Daughter Board
• Interface Type: I2C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-2905

EVALUATION BOARD GETTING STARTED
2.3 ST90158 DAUGHTERBOARD
The ST90158 daughterboard is connected to the motherboard by two 50-pin connectors
which are used to transmit signals and the power supply to or from the ST90158 microcontrol-
ler.
2.3.1 I²C Interface
An I²C peripheral is not included in the ST90158, but the SPI block is able to handle some I²C
functions and can fully generate the I²C communication protocol in master or multimaster
mode (no slave). In order for the SPI to be able to emulate I²C communication protocol, the
SPI input and output pins must be connected to the SDA signal. This is done by placing jump-
ers on connectors TP6 and TP4.
Figure 9. I²C Interface Diagram
2.3.2 Current Measurement and Power Supply
A jumper must be installed in the power supply connector TP5 even when only using the em-
ulator, and not the microcontroller. This jumper must be installed in order for the device to op-
erate. This jumper connector can also be used to measure the current consumption of the mi-
crocontroller.
Figure 10. Connector TP5 Diagram
2.3.3 Analog Supply Voltage
A jumper must be applied to analog supply connector TP2 which is used to select the power
supply source between MVcc (same as the MCU) or an external power supply. Refer to the
12/24
P51
TP6
MW1x2C
Vcc
MVcc
SDA
TP4
MW1x2C
TP5
1
2
MW1x2C
P97