Silicon Laboratories C8051F55 Series User Manual page 13

5.11. 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 C8051F568 signal pins. Pins for VREGIN, VDD, VIO, and 3.3V are also available. See Table 10 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 P3.7_A
A-14 P3.4_A
A-15 P3.1_A
A-16 P3.6_A_L
A-17 P3.3_A_L
A-18 P3.0_A_L
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 P4.0_C2D_A
A-25
RST_A
A-26 GND
A-27 N/C
A-28 N/C
A-29 VIO_A
A-30 N/C
A-31 N/C
A-32 N/C
The Silicon Labs add-on boards designed to interface to the 96-pin interface are primarily designed to operate at
3.3 V and to use a non-multiplexed external memory interface. When interfacing to a +3.3 V add-on board, it is
recommended to put the shorting block on J4[2-3] to connect VIO of the C8051F568 to +3.3 V instead of the
default +5 V. The C8051F560 target board also includes an 8-bit latch (U8) for use with the multiplexed mode of the
Table 10. 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 P3.6_A
B-14 P3.3_A
B-15 P3.0_A
B-16 P3.5_A_L
B-17 P3.2_A_L
B-18 P2.7_A
B-19 P2.4_A
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. 0.2
C8 05 1 F 5 5x /5 6x / 57 x
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 P3.5_A
C-14 P3.2_A
C-15 P3.7_A_L
C-16 P3.4_A_L
C-17 P3.1_A_L
C-18 P2.6_A
C-19 P2.3_A
C-20 P2.0_A
C-21 P1.4_A
C-22 P1.5_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
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