Advantech PCA-6186, User Manual

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PCA-6186 User’s Manual 12
1.8 System Memory
The top-left edge of the PCA-6186 contains two sockets for 184-pin dual
in-line memory modules (DIMMs). Both two sockets use 2.5 V unbuf-
fered synchronous DRAMs (DDR SDRAM). DIMMs are available in
capacities of 64, 128, 256, 512 MB, or 1 GB. The sockets can be filled in
any combination with DIMMs of any size, giving your PCA-6186 single
board computer between 64 MB and 2 GB of memory. Use the following
table to calculate the total DRAM memory within your computer:
Table 1.4:
Watchdog timer output (J2)
Function
Jumper Setting
IRQ11 1-2 closed
* Reset 2-3 closed
* default setting
Note: The interrupt output of the watchdog timer is a
low level signal. It will be held low until the
watchdog timer is reset.
Table 1.5:
DIMM module allocation table
Socket number 184-pin DIMM memory
1 64, 128, 256, 512 MB, or 1GB)
2 64, 128, 256, 512 MB, or 1GB)
1
1
1
1