Block Diagram
3-12
3
Flash Latency
There is one 16-bit port bank of Flash on the MVME230x. The access
times for this bank are shown in the following table.
Ethernet Interface
The MVME230x module uses Digital EquipmentÕs DECchip
21140/21143 PCI Fast Ethernet LAN controller to implement an
Ethernet interface that supports 10Base-T/100Base-TX connections,
via an RJ45 connector on the front panel. The balanced differential
transceiver lines are coupled via on-board transformers.
Every MVME230x is assigned an Ethernet station address. The
address is $08003E2
xxxxx
, where
xxxxx
is the unique 5-nibble
number assigned to the board (i.e., every board has a different
value for
xxxxx
).
Each MVME230x displays its Ethernet station address on a label
attached to the base board in the PMC connector keepout area just
behind the front panel. In addition, the six bytes including the
Ethernet station address are stored in the NVRAM (BBRAM)
configuration area specified by boot ROM. That is, the value
Table 3-7.PowerPC 60x Bus to FLASH Access Timing for Bank B (16-bit Port)
Access type
Clock Periods Required for:
Total
Clocks
1st
Beat
2nd
Beat
3rd
Beat
4th
Beat
4-Beat Read
68
64
64
64
260
4-Beat Write
N/A
N/A
N/A
N/A
N/A
1-Beat Read (2 bytes to 8 bytes)
68
-
-
-
68
1-Beat Read (1 byte)
20
-
-
-
20
1-Beat Write
19
-
-
-
19
Summary of Contents for MVME2301
Page 1: ...MVME2300 Series VME Processor Module Installation and Use V2300A IH2 ...
Page 8: ......
Page 14: ...xiv ...
Page 48: ...Operating Instructions 2 8 2 ...
Page 80: ...Programming the MVME230x 4 12 4 ...
Page 92: ...Using PPCBug 5 12 5 ...
Page 110: ...ENV Set Environment 6 18 6 ...
Page 118: ...Ordering Related Documentation A 8 A ...