Enclustra MA-PM3-C-R3, Руководство пользователя, Страница: 25 / 43

23/04/2019 25 / 43 Version 1.09
Table 14: J1301 – Internal power connector
2.8.14 J1302 – Fan Connector
At this connector a 12V fan with sense signal can be installed.
Connector Pin Signal
1 GND
2 VCC_12V
3 SYSMON_TACHO (Sense signal to determine fan speed)
Table 15: J1302 – Fan connector
2.8.15 J1303 – Battery Holder
In this battery holder a 3V CR1220 battery for the FPGA module RTC can be installed. The battery
holder was not equipped in boards prior revision R4.
Connector Pin Signal
1 GND
2 VBAT_IN
Table 16: J1303 – Battery holder
2.9 Hardware description
This section gives an overview of the Mars PM3 Board features. More detailed information can be
found in the Mars PM3 Board schematics1.
2.9.1 Buttons
Button Description
SRST
(S1201)
Soft Reset: This active low button is connected to the FPGA through J200, pin 192
(SRST#_RDY#) and may be used as a soft reset or depending on the module as user button.
POR
(S1202)
Hard Reset: This active low button is connected to the PROG_N/CONFIG_N pin of the FPGA
or the POR_N of SOC devices. It forces the FPGA to clear the current configuration and
reboots SOC devices.
BTN
(S1203) User Button: This active low button can be used as user button. It is connected to the FPGA
through J200, pin 129 and is shared with the FX3_FLAGB signal.
Table 17: Buttons