W7500x Reference Manual Version1.1.0
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Sn_KATMR (Socket n Keep Alive Timer Register)
Address Offset : 0x0180
Reset value : 0x0000_0000
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Res
Res
Res
res
res
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res
res
res
res
res
res
res
res
res
res
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res
Res
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res
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res
res
Sn_KATM[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Sn_KPALVTR configures the transmitting timer of ‘KEEP ALIVE(KA)’ packet of SOCKETn. It is
valid only in TCP mode, and ignored in other modes. The time unit is 5s(Refer to TCKCNTR).
KA packet is transmittable after Sn_SR is changed to SOCK_ESTABLISHED and after the data is
transmitted to a peer at least once. In case of 'Sn_KPALVTR > 0', WZTOE automatically transmits
KA packet after time-period for checking the TCP connection (Auto-keepalive-process). In case
of 'Sn_KPALVTR = 0', Auto-keep-alive-process will not operate, and KA packet can be
transmitted by SEND_KEEP command by the host (Manual-keep-alive-process). Manual-keep-
alive-process is ignored in case of 'Sn_KPALVTR > 0'.
Ex) Sn_KPALVTR = 10 (Keep Alive packet will be transmitted every 50 seconds.)
Sn_KATM[7:0]
0x0A
Sn_RTR (Socket n Retry Time Register)
Address Offset : 0x0184
Reset value : 0x0000_0000
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res
res
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res
res
res
res
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Sn_RTR[15:0]
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Sn_RTR configures the retransmission timeout period of Socket n. When Retry Counter
Register(RTR) is zero, Sn_RTR is valid. The unit of timeout period is 100us(Refer to TCKCNTR).
Содержание W7500
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