Silicon Laboratories C8051F500 User Manual page 14

C8051F500DK
8.10. Voltage Reference (VREF) Connectors (J22 and J32)
The VREF connectors can be used to connect the VREF pin from the MCU (P0.0) to external 0.1 uF and 4.7 uF
decoupling capacitors. The C8051F500 (Side A) device is connected to the capacitors through the J22 header and
the C8051F502 (Side B) device connects to its own set of capacitors through J32.
8.11. Expansion Connector (P1)
The 96-pin expansion I/O connector P1 is used to connect daughter boards to the main target board. P1 provides
access to many C8051F500 signal pins. Pins for VREGIN, VDD, VIO, and 3.3V are also available. See Table 9 for
a complete list of pins available at P1.
The P1 socket connector is manufactured by Hirose Electronic Co. Ltd, part number PCN13-96S-2.54DS, Digi-Key
part number H7096-ND. The corresponding plug connector is also manufactured by Hirose Electronic Co. Ltd, part
number PCN10-96P-2.54DS, Digi-Key part number H5096-ND.
Pin # Description
A-1 +3.3V
A-2 N/C
A-3 N/C
A-4 N/C
A-5 N/C
A-6 N/C
A-7 N/C
A-8 N/C
A-9 N/C
A-10 N/C
A-11 P0.5_A
A-12 P_0.2_A
A-13 P4.7_A
A-14 P4.4_A
A-15 P4.1_A
A-16 P3.6_A
A-17 P3.3_A
A-18 P3.0_A
A-19 P2.5_A
A-20 P2.2_A
A-21 P1.7_A
A-22 P1.2_A
A-23 P1.1_A
A-24 C2D_A
A-25 /RST_A
A-26 GND
A-27 N/C
A-28 N/C
A-29 VREF0
A-30 N/C
A-31 N/C
A-32 N/C
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Table 9. P1 Pin Listing
Pin # Description
B-1 GND
B-2 N/C
B-3 N/C
B-4 N/C
B-5 N/C
B-6 N/C
B-7 N/C
B-8 N/C
B-9 N/C
B-10 P0.7_A
B-11 P0.4_A
B-12 P0.1_A
B-13 P4.6_A
B-14 P4.3_A
B-15 P4.0_A
B-16 P3.5_A
B-17 P3.2_A
B-18 P2.7_
B-19 P2.4_
B-20 P2.1_A
B-21 P1.6_A
B-22 P1.3_A
B-23 P1.0_A
B-24 N/C
B-25 GND
B-26 N/C
B-27 N/C
B-28 N/C
B-29 VDD_A
B-30 N/C
B-31 N/C
B-32 AGND
Rev. 0.1
Pin # Description
C-1 N/C
C-2 N/C
C-3 N/C
C-4 N/C
C-5 N/C
C-6 N/C
C-7 N/C
C-8 N/C
C-9 N/C
C-10 P0.6_A
C-11 P_0.3_A
C-12 P0.0_A
C-13 P4.5_A
C-14 P4.2_A
C-15 P3.7_A
C-16 P3.4_A
C-17 P3.1_A
C-18 P2.6_A
C-19 P2.3_A
C-20 P2.0_A
C-21 P1.5_A
C-22 P1.4_A
C-23 N/C
C-24 N/C
C-25 N/C
C-26 N/C
C-27 N/C
C-28 N/C
C-29 VREGIN_A
C-30 N/C
C-31 N/C
C-32 N/C