Local Bus Controller Chip Select Assignments; Two-Wire Serial Interface; Table 7-3 Lbc Chip Select Assignments; Table 7-4 I2C Bus Device Addressing - SMART Embedded Computing MVME3100 Installation And Use Manual

7.4

Local Bus Controller Chip Select Assignments

The following table shows local bus controller (LBC) bank and chip select assignments for
the MVME3100 board.
Table 7-3
LBC Bank/
Chip Select
0
1
2
3
4
5-7
1. Flash bank size determined by VPD flash packet.
2. Control/Status registers are byte read and write capable.
3. 32-bit timer registers are byte readable, but must be written as 32 bits.
7.5

Two-Wire Serial Interface

A two-wire serial interface for the MVME3100 is provided by an I
controller integrated into the MPC8540. The MPC8540 I
software to read the contents of the various I
following table contains the I
addresses.
Table 7-4
I2C Bus
Address
$90
$A0
MVME3100 Single Board Computer Installation and Use (6806800M28H)
Local Bus Controller Chip Select Assignments
LBC Chip Select Assignments
Local Bus Function
Boot Flash bank
Optional second Flash bank
Control/Status registers
Quad UART
32-bit timers
Not used
2
C devices used for the MVME3100 and their assigned device
I2C Bus Device Addressing
Device
Address
Size (bytes) Device Function
A2 A1 A0
(binary)
000 N/A
000 256 x 8
Data Bus
Size
Width
32MB - 128MB 32 bits
32MB - 128MB 32 bits
64 KB 32 bits
64 KB 8 bits
64 KB 32 bits
2
2
C controller is used by the system
2
C devices located on the MVME3100. The
DS1621 temperature sensor
DDR memory SPD (SODIMM module
banks 1 and 2 corresponding to
MPC8540 memory controller chip
selects 0 and 1)
Notes
1
1
2
3
C compatible serial
Notes
1
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