Block Diagram
3-26
3
Flash device speed is 150 ns. For this speed, software must not program
ROMFAL (first access length) and ROMNAL (last access length) in the
MPC105 device with values lower than the following minimum values for
various processor external clock frequencies (hardware does not support
the burst for which NAL is used):
RAM104 Memory Module
The RAM104 is the optional DRAM memory mezzanine module that
(together with a PM603 or PM604 processor/memory mezzanine, an LED
mezzanine, and an optional PCI mezzanine card) plugs into the base board
to make a complete MVME1603 or MVME1604 single-board computer.
See Figure 1-11.
RAM104 modules of 8, 16, 32, or 64MB are available for memory
expansion. There is no parity or ECC protection on the DRAM.
The addition of the memory module on the processor/memory module
makes a stack three boards high. An MVME1603 SBC maintains a single
VME slot width with this stacking, although it does brush the inter-card
buffer zone. MVME1604 SBCs have a heatsink on the PowerPC604 that
extends well into the adjacent VME slot, so MVME604 boards have
double-wide front panels.
Table 3-4. Minimum ROMFAL and ROMNAL Values
Processor
External Bus
Speed
ROMFAL
Minimum
Value
ROMNAL
Minimum
Value
8-Bit Access
Times
(Number of
Clocks)
64-Bit
Single/Burst
Access Times
(Number of
Clocks)
25 MHz
1
1
4
32/32-32-32-32
33 MHz
2
2
5
40/40-40-40-40
40 MHz
3
3
6
48/48-48-48-48
50 Mhz
5
5
8
64/64-64-64-64
66 MHz
7
7
10
80/80-80-80-80
Summary of Contents for MVME1603
Page 1: ...MVME1603 MVME1604 Single Board Computer Installation and Use V1600 1A IH4 ...
Page 14: ...xiv ...
Page 156: ...Using the Debugger 5 8 5 ...
Page 176: ...ENV Set Environment 6 20 6 ...
Page 190: ...EMC Compliance B 4 B ...
Page 200: ...Proper Grounding C 10 C ...
Page 222: ......