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SP605 Hardware User Guide
UG526 (v1.1.1) February 1, 2010
Chapter 1:
SP605 Evaluation Board
User Pushbutton Switches
The SP605 provides five active-High pushbutton switches: SW4, SW5, SW6, SW7 and SW8.
The five pushbuttons all have the same topology as the sample shown in
Figure 1-16
. Four
pushbuttons are assigned as GPIO, and the fifth is assigned as a CPU_RESET.
Figure 1-16
and
Table 1-24
describe the pushbutton switches.
X-Ref Target - Figure 1-16
Figure 1-16:
User Pushbutton Switch (Typical)
Table 1-24:
Pushbutton Switch Connections
U1 FPGA Pin
Schematic Netname
Switch Pin
F3
GPIO_BUTTON_0
SW4.2
G6
GPIO_BUTTON_1
SW7.2
F5
GPIO_BUTTON_2
SW5.2
C1
GPIO_BUTTON_3
SW8.2
H8
CPU_RESET
SW6.2
VCC1V5
CPU_RE
S
ET
P
us
h
bu
tton
1
1
2
4
2
S
W6
R230
1.00K
1%
1/16W
3
P1
P2
P3
P4
UG526_16_092409