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Operating Instructions
2
Jumper Settings
The following table describes the MVME2100 jumper configuration.
Table 2-1. Jumper Switches and Settings
Jumper
Description
Setting
Default
J1
Factory Test Header
Reserved
N/A
J2
VMEbus System
Controller
Functionality Select
Pins 1 & 2 Shorted: Disables the System
Controller Function
Pins 2 & 3 Shorted: Enables Auto-Sence
Function
No Shunt on Pins Forces the System
Controller On
No
Shunt on
Pins
J6
Factory Test Header
(I2C Signals)
Reserved
N/A
J7
Programming Header
(ISPLI)
Reserved
N/A
J8
RiscWatch JTAG
Reserved
N/A
J9
Software Readable
Header (Support for
Processor Emulation)
Pins 1 & 2 For
PPCBug use only.
Pins 1 & 2:
ON = Use Soldered On Flash Memory
Devices
OFF = Use Memory in Sockets U1, U8, U13,
U15
Note: PPCBug uses Bit 7 while booting to
determine whether to continue executing
from socketed Flash or jump to soldered-on
Flash.
Pins 3 - 16 are User Definable.
Pins 3 and 4 = Bit 1,
Pins 5 and 6 = Bit 2,
Pins 7 and 8 = Bit 3
Pins 9 and 10 = Bit 4,
Pins 11 and 12 = Bit 0,
Pins 13 and 14 = Bit 6,
Pins 15 and 16 = Bit 7
Refer to the Configuration Header Register
section in the V2100 Programmer’s Guide.
Pins 1&2
OFF
