User`s manual

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 3.3 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)