S7600A datasheet(11/60 Pages) SII

11 / 60 page

TCP/IP Network Stack LSI

S-7600A

Hardware Specification Revision 1.3

Seiko Instruments Inc.

2-1

2. Functional Block Diagram

Figure 2-1 shows a functional block diagram of the S-7600A. There are blocks of the Network Stack and

other functions related to it. The S-7600A has the interface for a host MPU and a Physical layer for

various data terminal equipment.

Figure 2-1

Block Diagram

The transport and network layers contain:

Two general sockets that provide connectivity between the application layer and the transport layer.

TCP/UDP module that allows for reliable (retransmission) and unreliable (no retransmission)

datagram deliveries.

IP module that provides connectionless packet delivery.

PPP module that provides point-to-point connection link between two hosts.

Network Stack

Physical Layer

Interface

SRAM

10Kbytes

SD(7:0)

PSX

C86

READX

WRITEX

BUSYX

INTCTL

INT1

INT2X

RESETX

CLK

PPP

UDP

TCP

S2P

16-byte

FIFO

P2S

1-byte

BUFFER

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