DIGITAL-LOGIC AG
PCCP5 Manual V2.3
99
5.1 Jumpers on this MICROSPACE product
Jumper locations on the board
The figure shows the location of all the jumper blocks on the PCC-P5 board. The numbers shown in this fi g-
ure are silk screened on the board so that the pins can easily be located. This chapter refers to the individual
pin for these jumpers. The default jumper settings are written in bold. Be careful when you change some
jumpers. Some jumpers are soldering jumpers so you need a miniature soldering station.
The Jumpers on the front side of the PCC-P5, (RM2.54mm jumpers)
J3, J4, J86
CPU Speed select
J3 (BF0)
J4 (BF1)
J86 (BF2)
1.5 x CLK
open
open
open
2 x CLK
closed
open
open
2.5 x CLK
closed
closed
open
3.0 x CLK
open
closed
open
Please see also table below for different CPU’s and the correct BFx settings.
J7, J8
Clock selection
J7 (CLKSEL1)
J8 (CLKSEL0)
CLK = 50 MHz
closed
closed
CLK = 60 MHz
open
closed
CLK = 66 MHz
closed
open
J52, J53
Direct VGA-BIOS select
J52
J53
BIOS 0
open
open
BIOS 1
closed
open
BIOS 2
open
closed
BIOS 3
closed
closed
Jumper
Signals
1-2 = open
2-3 = closed
J26
BIOS address SA16
1-2 = recover mode
2-3 = normal mode
J27
RTC reset
open = run
closed = reset
J37
SCSI-2 termination
open = disable
closed = enabled
J51***
2.9V CPU Support
open = 2.9V
closed = normal 3,3V
J59
PCI-BUS-Clock select (factory used)
open = pull up =
25Mhz
closed = to PGOOD =
33Mhz
J75
Generic Digital Input (factory used)
open = pull up
closed = pulldown
J76
Generic Digital Input (factory used)
open = pull up
closed = pulldown
J81 to J85
Memory data interface (factory used)
open = pull up
closed = pulldown
Position:
J41
J42
J43
Configuration
IOS0
IOS1
IOS2
Base-Addr.
IRQ
Bus
Interface
0
closed
closed
closed
340
5
8
AUI/COAX/WS
1
open
closed
closed
340
10
16
AUI/COAX/WS
2
closed
open
closed
320
11
16
AUI/COAX/--
3
open
open
closed
300
5
8
AUI/COAX
4
closed
closed
open
340
5
8
10BASE-T/WS
5
open
closed
open
340
10
16
10BASE-T/WS
6
closed
open
open
320
11
16
10BASE-T/--
7
open
open
open
downloadable
software
configuration
*** MMX CPU: J51 off and (U3 assembled and R173=51k
Ω
for 2.9V)