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

Programming Details
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 Chip Select Assignments

LBC Bank/
Chip Select Local Bus Function
0 Boot Flash bank
1 Optional second Flash bank
2 Control/Status registers
3 Quad UART
4 32-bit timers
5-7 Not used
1. Flash bank size determined by VPD flash packet.
2. Contro/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
integrated into the MPC8540. The MPC8540 I
read the contents of the various I
contains the I

Table 7-4 I2C Bus Device Addressing

Device Address
I2C Bus A2 A1 A0
Address (binary)
$90 000
130
2
C devices located on the MVME3100. The following table
2
C devices used for the MVME3100 and their assigned device addresses.
Size (bytes)
N/A
MVME3100 Single Board Computer Installation and Use (6806800M28C)
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
C controller is used by the system software to
Device Function
DS1621 temperature sensor
Notes
1
1
2
3
2
C compatible serial controller
Notes