NXP Semiconductors freescale TWR-TWRPI-BD, Quick Start Manual, Page: 6 / 7

Quick Start Guide
10 11
TOWER SYSTEM
11
I
2
C Configuration
Jumper Option Setting Description
J26 I
2
C SCL
Selection
1-2 Connect primary elevator signal I2C0_SCL
(A7) to all TWRPI sockets
3-4 Connect primary elevator signal I2C1_SCL
(B50) to all TWRPI sockets
J27 I
2
C SDA
Selection
1-2 Connect primary elevator signal I2C0_SDA
(A8) to all TWRPI sockets
2-3 Connect primary elevator signal I2C1_SDA
(B51) to all TWRPI sockets