Idsel Address Assignments For Pci Local Bus; Figure 3-2. Idsel Switch Settings (S2) - Emerson I/O MODULE IPMC7126E Installation And Use Manual

Figure 3-2. IDSEL Switch Settings (S2)

S2-P1 = 1
S2-P2 = 0
MVME5100 and MVME5500 S2 Default Setting
The settings of SW2 determine the IDSEL used by the W83C553 PCI/ISA Bridge. It is important
that the settings of P1 and P2 are neither both on nor both off, otherwise the device will be
enumerated twice.
If
The SW2-P1 is OFF
The SW2-P2 is OFF
The IPMC761-002 is used on an
MVME6100
The IPMC761-002 is used on an
MVME5100 or MVME5500

IDSEL Address Assignments for PCI Local Bus

Legacy IDSEL assignment for the PCI-to-ISA Bridge (PIB) is maintained to ensure software
compatibility between MVME2700 and MVME5100 while functioning in IPMC mode. The
IPMC712 and IPMC761 boards have a switch (S2) that allows you to configure the board for
the correct IDSEL connection to the Winbond chip, as described below:
■
Connection to IDSEL, AD[11] on PMC connector pin P11-48 is selected when using the
IPMC 712/761 with ECC VME boards MVME5100 and MVME5500 (boards released prior
to the MVME6100)
■
Connection to IDSEL, AD[16] on PMC connector pin P12-34 is selected when using the
IPMC712/761 with the MVME6100 board
■
Connection to IDSELB varies according to the base board:
– 5100: No Connect
– 5500: AD[17]
– 6100: AD[21]
– PrPMC Carrier: AD[17]
ON
S2-P1=0
S2-P2 =1
Then
The W83C553's IDSEL is connected to
IDSELB (P12:34). The IDSEL is then
determined by the carrier's configuration of the
IPMC site.
The W83C553's IDSEL is connected to AD11
on the IPMC.
The SW2-P1 should be OFF and SW2-P2 set
ON for proper operation.
The SW2-P1 should be ON and SW2-P2 OFF
to emulate the IPMC761-001.
IPMC7126E/7616E I/O Module Installation and Use (6806800A45B)
Chapter 3 Programming
ON
MVME6100 S2 Setting
17