S7600A datasheet(39/60 Pages) SII

39 / 60 page

TCP/IP Network Stack LSI

S-7600A

Hardware Specification Revision 1.3

Seiko Instruments Inc.

7-12

Table 7-24

Socket Config Status Low Register Description

Bit

Bit Name

Access

Description

TCP Timeout

This bit indicates that a TCP timeout condition

occurred while attempting to establish a TCP

connection or while waiting for a TCP packet after the

connection was established.

0 = Normal Operating Condition

1 = Timeout Occurred

Buff_Empty

This bit indicates whether or not a socket’s outgoing data buffer

is empty. The bit sets on an empty condition. It then clears and

remains clear as long as there is any data in the socket’s

outgoing data buffer.

0 = Buffer Not Empty

1 = Buffer Empty

Buff_Full

This bit indicates whether the outgoing buffer is full

(1023 bytes or more). It also triggers an interrupt when

the outgoing data buffer is full, and the Buff_Full_En

bit in the Socket Interrupt Mask Low register (0x2A) is

set. The Data Register should not be written to when

this bit is a “1”.

0 = Buffer Space Available

1 = No Buffer Space Available

Data_Avail / RST

R/W

Writing this bit resets all socket parameters to default

settings. It is self-clearing and dose not need to be

written to low for proper operations. Before resetting,

ensure that Snd_Bsy bit of Socket Status High

the socket has data available.

2:0

Protocol_Type

R/W

These bits are used to set the protocol of the socket.

All decodes not shown are reserved.

010 = TCP Client Mode

101 = UDP Mode

110 = TCP Server mode

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