Chapter 2: Board Components
2–23
Configuration, Status, and Setup Elements
Altera Corporation
Stratix III 3SL150 Development Board
System Reset and Configuration Switches
Board reference S7 is the system reset push-button switch,
RESET_CONFIG
, which is an
input to the MAX II device. This switch forces a reconfiguration of the FPGA from
flash memory. The location in flash memory is based on the input from the PGM
Config Select rotary switch position for the signals
PGM
[2:0]
. The MAX II device uses
the
RESET_CONFIGn
pin as its reset along with the
CPU_RESET
pin push-button.
Board reference S6 is the CPU reset push-button switch,
CPU_RESET
, which is an input
to both the Stratix III FPGA and the MAX II CPLD. The
CPU_RESET
push-button is
intended to be the master reset signal for the FPGA design loaded in the Stratix III
device, and connects to a regular I/O pin on the FPGA. The MAX II device uses this
push-button as its reset along with the
RESET_CONFIG
and
FACTORY_CONFIG
push-
buttons.
Board reference S1 is the factory push-button,
FACTORY_CONFIG
, which is an input to
the MAX II device. The
FACTORY_CONFIG
pin forces a reconfiguration of the FPGA with
the factory default FPGA design, which is located at the base of flash memory. See
.
lists the push-button switch component reference and manufacturing
information.
For information about user-defined push-buttons, refer to
Power Select Rotary Switch
A 16-position rotary switch, board reference SW6, is used to select the current power
rail whose power is being measured and displayed on the power display. The rotary
switch is connected to the MAX II CPLD.
Upon first use, after configuring or powering up the board, make sure you initiate
changes to the rotary switch (SW6) so that the measurement circuit can initiate a
channel reading. Otherwise, the measurement might be reading a previous capture.
Table 2–14. Push-Button Switch Signal Name and Function
Board Reference
Schematic
Signal Name
Stratix III Device
Pin Number
MAX II Device
Pin Number
S1
FACTORY_CONFIG
—
A10
S7
RESET_CONFIGn
—
R16
S6
CPU_RESET
T21
M9
Table 2–15. Push-Button Switch Component Reference and Manufacturing Information
Board Reference
Description
Manufacturer
Manufacturing
Part Number
Manufacturer
Website
S1, S6, S7
Push-button switch
Panasonic
EVQAPAC07K