Cisco 7200 VXR - Page 27

1-27
Cisco 7200 VXR Installation and Configuration Guide
78-5469-03
Chapter 1 Cisco 7200 VXR Product Overview
Field-Replaceable Units
Note 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 Figure 1-10). 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.
Secondary
cache
256 KB — RM7000 processor internal,
unified instruction and data cache
U49
Tertiary cache 2 MB (fixed) — RM7000 processor external cache U7, U8,
U9, U10,
U17
1. Location on processing engine board. See Figure 1-10.
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.
Table 1-8 NPE-300 SDRAM DIMM Configurations
Total
SDRAM SDRAM Bank 1
1
Quantity Product Number
2
32
3
MB +
32 MB
U45 (DIMM
slot 2 only)
1-32-MB DIMM MEM-SD-NPE-32MB
32
3
MB +
64 MB
U45 and U44
or
2 32-MB DIMM
or
MEM-SD-NPE-32MB
U45 1 64-MB DIMM MEM-SD-NPE-64MB
Table 1-7 NPE-300 Memory Specifications (continued)
Memory Type Size Quantity Description Location
1