S-7600A Datasheet, PDF (39/60 Pages) Seiko Instruments Inc – Hardware Specification (TCP/IP Network Stack LSI)

TCP/IP Network Stack LSI
S-7600A
Hardware Specification Revision 1.3
Table 7-24
Socket Config Status Low Register Description
Bit
Bit Name
7 TO
6 Buff_Empty
5 Buff_Full
4 Data_Avail / RST
2:0 Protocol_Type
Access
R
R
R
R/W
R/W
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
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
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
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
register (0x3A) is 0. When read, this bit indicates that
the socket has data available.
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
Seiko Instruments Inc.
7-12