User's Manual

1323x Remote Extender Motherboard
1323x Development Hardware Reference Manual, Rev. 1.0
Freescale Semiconductor 5-11
Figure 5-7. IR Receiver Circuit
5.2.6 Pushbutton 2x4 Switch Matrix
The1323x-REM provides an 8 pushbutton 2x4 switch matrix for user application input interface.
• The matrix utilizes MC13233 KBI inputs
• All switches have interrupt and device wake up capability
5.2.7 Blue Indicator LEDs
The1323x-REM provides 4 blue LEDs for user application indicator outputs. Refer to Table 5-3 for
listings of the MC13233 outputs that drive the LEDs.