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Chapter 1 Cisco 7500 Series Product Overview
Route Switch Processor Overview
Figure
MEMD
SRAM
MEMD
SRAM
Route Switch Processor (RSP2)
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Bus connector | SIMMs |
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| CPU |
| U33 | U30 |
| Bank 0 |
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| U21 |
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| U12 | U18 | NVRAM | |
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U1 | U4 |
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| 122375 |
PC Card slots | Flash memory Auxiliary port | Console port | ||
slot 0: bottom | SIMM holder |
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slot 1: top |
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The RSP2 contains the system CPU, the system software (in Flash memory), the system memory components, and two PC Card slots, formerly called Personal Computer Memory Card International Association (PCMCIA) slots, and it maintains and executes the management functions that control the system.
Although no monitoring of ±12V or temperature is done by the RSP2, a comparator device ensures that ±12V is maintained within the normal operating ranges, and three temperature sensors on the RSP2 send temperature information to the chassis interface (CI) card. The CI card reports all voltage and temperature readings, and these readings are available through standard software commands for environmental monitoring.
The RSP2 uses a
The RSP2 contains the following components:
•R4600— Reduced Instruction Set Computing (RISC) processor, used for the CPU. The CPU runs at an external clock speed of 50 MHz and an internal clock speed of 100 MHz.
•Most of the memory components used by the system, including onboard Flash memory. (A bank of hardware
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In addition to the system software, the RSP2 contains and executes the following management functions that control the system:
•Sending and receiving routing protocol updates.
•Managing tables and caches.
•Monitoring interface and environmental status.
| Cisco 7500 Series Installation and Configuration Guide |