Table of Contents
Advertisement
Secondary
256 KB
cache
Tertiary cache
2 MB (fixed)
1. Location on processing engine board. See
2. Bank 0 is used exclusively for packet memory and is not user configurable.
3. Bank 1 contains the Cisco IOS software, processor memory, and packet memory.
4. OTP = one-time programmable
The NPE-300 contains two banks of SDRAM. Both SDRAM banks are used for all packet memory
requirements; however, bank 0 is used exclusively for packet memory and is set at a fixed configuration
in the factory.
Bank 1 contains two user-configurable SDRAM slots, DIMM slot 2 and DIMM slot 3 (see
Both slots in bank 1 can be populated by DIMMs of different sizes; however, the size of the DIMM in
slot 2 must be greater than or equal to the size of the DIMM in slot 3, and the size of the DIMM in slot 3
can be zero.
3
32
MB + 32 MB
U45 (DIMM slot 2
only)
3
32
MB + 64 MB
U45 and U44
or
U45
3
32
MB + 128 MB
U45 and U44
or
U45
3
32
MB + 256 MB
U45 and U44
1. There are two user-upgradable SDRAM slots in bank 1. (Bank 0 is used exclusively for packet memory and is set at a fixed
configuration in the factory.)
2. These products are also available as SDRAM upgrades. To order an upgrade, add an equal sign (=) after the product number,
for example, MEM-SD-NPE-128MB=.
3. This 32 MB is fixed memory in SDRAM bank 0, socket U16. Socket U15 is never populated.
—
RM7000 processor, internal,
unified instruction and data cache
—
RM7000 processor, external cache U7, U8,
Figure
1-9.
1 32-MB DIMM
2 32-MB DIMMs
or
1 64-MB DIMM
2 64-MB DIMMs
or
1 128-MB DIMM
2 128-MB DIMMs
U49
U9, U10,
U17
Figure
2
MEM-SD-NPE-32MB=
MEM-SD-NPE-32MB=
MEM-SD-NPE-64MB=
MEM-SD-NPE-64MB=
MEM-SD-NPE-128MB=
MEM-SD-NPE-128MB=
1-9).
- Quick Links:
- Physical Description
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
