Cisco 7200 VXR User Manual page 27

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