Motorola APX 7000 - Advanced Features; Viewing Details of a Contact; Scan Lists; Viewing a Scan List

3-58 Theory of Operation: Controller
3.2.6.5 Side Controls
The side controls include three programmable, momentary, pushbutton switches (Side Button 1
[SB1], Side Button 2 [SB2], Top Side Button [MON]) and a Push-To-Talk switch [PTT]. These
components interface to the expansion board via connector J2005 through a two-piece, bonded flex
circuit. A board-to-board connection routes the side controls signals from expansion board connector
P2001 to connector J4001 of the controller board. See Table 3-9 and Table 3-10 for a complete list of
pin assignments.
Side button 1 (R266), side button 2 (R268) and the top side button (R135) are inputs to the CPLD
and are biased to 1.875V. A button press is detected when the OMAP reads a 'LO' state from the
CPLD EMIFS interface. PTT (R265) is connected directly to OMAP and a button press is detected
when a LO state is read.
Figure 3-47. Side Button Flex Connector – P1 and J2005
1 3 , 0 # 0 , 2
2
3 , 1
Table 3-9. Side Button Flex Connector Pin Assignment – P1 and J2005
P1 & J2005 PIN ASSIGNMENT SIGNAL
1GND
2GND
3MON
4SB2
5GND
6GND
7SB1
8PTT
9GND
10 GND
Table 3-8. Key Map Matrix (Continued)
Key Row, Column Map Key Row, Column Map
P1
10 8 ….. 4 2
9 7 …… 3 1
J2005
1 3 ….. 7 9
2 4 ….. 8 10
Flex Circuit Connector Expansion-to-Flex Circuit Board Connector