Table 1-22. Interpretation Of Mid3-Mid0 - Motorola MVME2600 Series Reference Manual

Board Description and Memory Maps
1
LLB3_
IDREQ_
MODSEL
1
0
0
0
0
0
0
0
0
0
0
1-48
The module ID signals, which are only valid when IDREQ_ is asserted,
indicate the type of the serial module that is installed on either Port 3 or
Port 4. The following table shows how to interpret the MID3-MID0
signals:

Table 1-22. Interpretation of MID3-MID0

X X X X
0 0 0 0
0 0 0 0
0 0 0 1
0 0 0 1
0 1 1 1
1 0 0 0
1 0 0 0
1 0 0 1
1 0 0 1
1 1 1 1
Note
Because IDREQ_ and MID3-MID0 signals go through the
P2MX (P2 multiplexing) function used on
MVME2600/2700 series modules configured for the
MVME761-type transition module, software must wait for
the MID3-MID0 to become valid after asserting IDREQ_.
The waiting time should be about 4 microseconds because
the sampling rate is about 1.6 microsecond with a 10MHz
MXCLK clock.
Serial Module Type
X Invalid module ID
0 Module 3: EIA232 DCE
1 Module 3: EIA232 DTE
0 Module 3: EIA530 DCE
1 Module 3: EIA530 DTE
1 Module 3 Not Installed
0 Module 4: EIA232 DCE
1 Module 4: EIA232 DTE
0 Module 3: EIA530 DCE
1 Module 3: EIA530 DTE
1 Module 4 Not Installed
Module
Assembly
Number
01-W3876B01
01-W3877B01
01-W3878B01
01-W3879B01
01-W3876B01
01-W3877B01
01-W3878B01
01-W3879B01