S-7600A Datasheet, PDF (44/55 Pages) Seiko Instruments Inc – Hardware Specification (TCP/IP Network Stack LSI)

S-7600A
Hardware Specification
7.3.27. Their Port Registers (0x36-0x37)
(Read/Write, Default 0x0000)
These registers specify the destination port for an outgoing data packets. For client mode, this value
must be set prior to activating the socket. For TCP server mode, these register 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
7
Def.
Default
6
5
4
3
2
1
0
Least significant byte of the target port number
0x00
Table 7-42
Their Port Register Bit Definitions (0x37)
Bit
7
Def.
Default
6
5
4
3
2
1
0
Most significant byte of the target port number
0x00
7.3.28. Our Port Registers (0x38-0x39)
(Read/Write)
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
7
Def.
Default
6
5
4
3
2
1
0
Least significant byte of the local port number
0x00
Table 7-44
Our Port Register Bit Definitions (0x39)
Bit
7
Def.
Default
6
5
4
3
2
1
0
Most significant byte of the local port number
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
7
6
5
4
3
2
1
0
Def.
-
-
-
-
-
-
-
Snd_Bsy
Default
0
0
0
0
0
0
0
0
NOTE: Reserved bits are signified by a dash (-). All reserved bits should be written as “0”.
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Seiko Instruments Inc.