S-7600A Datasheet, PDF (24/55 Pages) Seiko Instruments Inc – Hardware Specification (TCP/IP Network Stack LSI)

S-7600A
Hardware Specification
6. Memory Requirements
6.1. Overview
S-7600A contains too general sockets along with the TCP/UDP/IP and PPP protocols. Their total
memory requirement is 10K bytes. This memory is included on the S-7600A chip.
6.2. Memory Interface Architecture
The Network Stack feeds all of its memory requests into a single Memory Arbiter inside of the Network
Stack core. The arbiter then feeds out one memory request to the SRAM interface. This interface
serves to translate the network stack's timing into signal timing required by the SRAM. This
architecture is shown in Figure 6-1.
Network Stack
TCP / UDP
IP
PPP
Memory
Arbiter
SRAM
Interface
SRAM
Serial Port
Figure 6-1
Memory Interface Architecture
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Seiko Instruments Inc.