The GPIO and GPEN signals use 1.8V CMOS signaling levels.
D2800 Baseband ASIC (BCM21351) Backlight Illumination Pins
Backlight and Illumination
Pin Name Pin I/O Type Description
GPIO17 V7 O CMOS Enable LED driver
GPEN9 B7 O CMOS Enable Keypad Light
Figure 48 Keypad backlight & LED Driver diagram
Electrical Interface Between Baseband and Camera
Introduction
The D2800 JUNO (BCM21351) BB ASIC has an integrated Compact Camera Port 2 (CCP-2) serial camera interface.
The BB ASIC provides a CMOS reference clock and shut-down signal. The camera is controlled by the Broadcom
Serial Control (BSC) #2 interface.
RM-497
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 – 35
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