ST92F150-EVAL STMicroelectronics, ST92F150-EVAL Datasheet - Page 13

• 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

datasheet of your device to get information on the maximum gap between the power supply
voltage (VDD) and the analog supply voltage (AVDD) of your device. Usually AVDD must be
contained between -0.3 V and +0.3 V VDD. Connector TP2 can also be used to measure the
consumption of the analog part of the device.
Figure 11. Analog Supply Voltage Diagram
2.3.4 Watchdog
The ST90158 watchdog can be enabled either by hardware or by software. Pin HW0SW1 is
used to define the selection mode. If pin HW0SW1 is connected to ground, the watchdog is
selected by hardware. If pin HW0SF1 is connected to Vcc, the watchdog is selected by soft-
ware if the application needs it.
Figure 12. Watchdog Selection Mode Diagram
Note: SW_WD means Software Watchdog and HW_WD means Hardware Watchdog.
2.3.5 I/O Port Connection
Ports PA, PB and PC are connected to ports P8, P9 and P2, respectively, of the ST90158.
TP1
MW1x1C
1
Vcc
Vext
HW0SW1
TP2
MW1X3C
AVDD
SW_WD
HW_WD
EVALUATION BOARD GETTING STARTED
1
2
3
MW1X3C
TP3
AVcc
MVcc
10NF
C4
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