S7600A datasheet(46/60 Pages) SII

46 / 60 page

TCP/IP Network Stack LSI

S-7600A

Hardware Specification Revision 1.3

7-19

Seiko Instruments Inc.

7.3.27. Their Port Registers (0x36-0x37)

(Read/Write, Default 0x0000)

These registers specify the destination port for an outgoing data packets. For TCP client or UDP mode,

this value must be set prior to activating the socket. For TCP server mode, these registers are

automatically setup on a connection with the peer’s port number. Register 0x36 stores the least

significant byte and 0x37 stores the most significant byte.

Table 7-41

Their Port Register Bit Definitions (0x36)

Bit

Def.

Least significant byte of the target port number

Default

0x00

Table 7-42

Their Port Register Bit Definitions (0x37)

Bit

Def.

Most significant byte of the target port number

Default

0x00

7.3.28. Our Port Registers (0x38-0x39)

(Read/Write, Default 0x0000)

These registers are used it indicate the source port for an outgoing data packet. When setting a TCP

client or sending data using UDP, these registers should be set to the proper value. Normally in client

applications, the software increments the value of this register. The TCP and UDP server application

should set these registers to be the value used by the server applications. Register 0x38 stores the least

significant byte; 0x39 stores the most significant byte.

Table 7-43

Our Port Register Bit Definitions (0x38)

Bit

Def.

Least significant byte of the local port number

Default

0x00

Table 7-44

Our Port Register Bit Definitions (0x39)

Bit

Def.

Most significant byte of the local port number

Default

0x00

7.3.29. Socket Status High Register (0x3A)

(Read-Only, Default 0x00)

This register reports the busy status of the socket.

Table 7-45

Socket Status High Register Bit Definitions

Bit

Def.

Snd_Bsy

Default

NOTE: Reserved bits are signified by a dash (-). All reserved bits should be written as “0”.

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