Chapter 1 Hardware Configuration 11
RTC data erase enable/disable (J11)
J11 determines whether RTC data is kept or erased.
RTC data erase enable/disable (J11)
Enable (keep data)
Disable (dump data)
3 2 1
3 2 1
J11
Buzzer enable/disable (J12)
Buzzer enable/disable (J12)
Enable
Disable
J12
PS/2 mouse select (J14)
IRQ 12 is designed for PS/2 mouse use. It may also be reserved for
user selected applications.
Buzzer enable/disable (J14)
PS/2 Mouse (default)
Reserve IRQ 12
J14
Installing DRAM (SIMMs)
The PCA-6155 has four 72-pin SIMM (Single In-Line Memory
Module) sockets that provide anywhere from 2 MB to 128 MB of
DRAM. Each socket accepts from 1 to 32 MB of DRAM. For more
detailed information please refer to the memory configuration tables
on page 12 of this manual.
