User`s guide

M1 System Management Board User’s Guide 11
2
Hardware Components
This chapter describes the hardware components of the M1 System Management Board.
Power Supplies
A 9 V power supply is provided with the kit. The 9 V brick is connected to the J1 connector on the board. This power
supply feeds the input voltage of three LDO-type regulators—U1, U2, and U3—through a slide switch, SW7. The
switch toggles between two positions On-Off. The regulators provide three voltages 5 V, 3.3 V and 1.5 V.
Table 2-1 illustrates LEDs provided to ensure that all the voltage reach the correct state.
Jumper Settings
JP13 is a two-pin jumper that provides V
JTAG
with a 3.3 V supply. V
JTAG
is needed to power up the JTAG circuitry of
the M1AFS1500-FG484 and A3P250-FG144 parts. While programming these two parts, make sure this location has a
jumper.
JP35 is a two-pin jumper that provides V
PUMP
with a 3.3 V supply. V
PUMP
is needed while programming the
M1AFS1500-FG484 and A3P250-FG144 parts. While programming these two parts, make sure this location has a
jumper.
JP1 is a three-pin jumper that provides 1.5 V to the M1AFS1500-FG484 part.
JP1.1-2 connects the 1.5 V going to the M1AFS1500-FG484 part to 1.5_INT. This voltage is generated internally by
the M1AFS1500-FG484 part through an on-chip regulator powered by the 3.3 V supply. JP1.2-3 connects the 1.5 V
going to the M1AFS1500-FG484 part to voltage 1.5_EXT. This voltage is generated externally by the on-board
regulator U3.
M1AFS1500-FG484
This is the Actel ARM-enabled Fusion FPGA demonstrated on the System Management Board and located at U23.
Refer to “M1AFS1500-FG484 Pin List” on page 47 for pin list information.
A3P250-FG144
This device is an Actel FPGA used purely due to the limitation on the number of I/Os on the M1AFS1500-FG484
part. This device controls all user interfaces: LCD, key pads, DIP switch, LEDs, etc. The M1AFS1500-FG484 and the
A3P250 device communicate via a UART interface using the Actel CoreUART IP. Refer to “A3P250-FG144 Pin List”
on page 63 for pin list information.
Table 2-1 · LEDs
LED
Reference
Designator
SW7
Description
Off On
Red LED D26 On On 9 V input voltage before switch SW7
Yellow LED D29 Off On 9 V input voltage after switch SW7
Yellow LED D25 Off On 5 V supply
Yellow LED D21 Off On 3.3 V supply
Yellow LED D27 Off On 1.5 V supply