C8051F930-TB Silicon Laboratories Inc, C8051F930-TB Datasheet - Page 20
![BOARD TARGET/PROTO W/C8051F930](/photos/9/25/92560/c8051f930-tb_sml.jpg)
C8051F930-TB
Manufacturer Part Number
C8051F930-TB
Description
BOARD TARGET/PROTO W/C8051F930
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F930-TB
Contents
Board
Processor To Be Evaluated
C8051F930
Processor Series
C8051F9xx
Data Bus Width
8 bit
Interface Type
I2C, UART, SPI
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
0.9 V to 3.6 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F930
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1472
C8051F930-DK
7.10. IREF Connector (J7)
The C8051F930 Target Board also features a current-to-voltage 1 k load resistor that may be connected to the
current reference (IREF0) output that can be enabled on port pin (P0.7). Install a shorting block on J7 to connect
port pin P0.7 of the target device to the load resistor. If enabled by software, the IREF0 signal is then routed to the
J2[8] and H1[2] connectors.
7.11. VREF and AGND Connector (J13, J14)
The C8051F930 Target Board also features 4.7 µF capacitor in parallel with a 0.1 µF that can be connected to
P0.0/VREF when using the Precision Voltage Reference. The capacitors are connected to P0.0/VREF when a
shorting block is installed on J13. Using the Precision Voltage Reference is optional since 'F93x-'F92x devices
have an on-chip High-Speed Voltage Reference.
The shorting block J14 allows P0.1/AGND to be connected to ground. This provides a noise-free ground reference
to the analog-to-digital Converter. The use of this dedicated analog ground is optional.
7.12. C2 Pin Sharing
On the C8051F930, the debug pins C2CK and C2D are shared with the pins RST and P2.7, respectively. The
target board includes the resistors necessary to enable pin sharing which allow the RST and P2.7 pins to be used
normally while simultaneously debugging the device. See Application Note “AN124: Pin Sharing Techniques for the
C2 Interface” at
www.silabs.com
for more information regarding pin sharing.
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Rev. 0.5