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W7100A Datasheet(PDF) 97 Page - WIZnet Co., Ltd |
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W7100A Datasheet(HTML) 97 Page - WIZnet Co., Ltd |
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97 / 160 page  W7100A Datasheet v1.2.5 97 3 TIMEOUT TIMEOUT Interrupt, when ARP timeout or TCP timeout occurs 2 RECV Receive Interrupt, whenever data packet is received from a peer 1 DISCON Disconnect Interrupt, when FIN of FIN/ACK packet is received from a peer 0 CON Connect Interrupt occurs only one time when changing the SOCKET status to SOCK_Established Sn_IMR (SOCKET n Interrupt Mask Register)[R/W][0xFE402C + 0x100n][0xFF] It configures the interrupt of SOCKET n so as to notify to the host. Interrupt mask bit of Sn_IMR corresponds to interrupt bit of Sn_IR. If interrupt occurs in any SOCKET and the bit is set as ‘1’, its corresponding bit of Sn_IR is set as ‘1’. When the bits of Sn_IMR and Sn_IR are ‘1’, IR(n) becomes ‘1’. At this time, if IMR(n) is ‘1’, the interrupt is issued to the host. (‘/INT’ signal is asserted low) 7 6 5 4 3 2 1 0 PRECV PFAIL PNEXT SEND_OK TIMEOUT RECV DISCON CON Bit Symbol Description 7 PRECV Sn_IR(PRECV) Interrupt Mask Valid only in case of ‘SOCKET = 0’ & ‘S0_MR(P3:P0) = S0_MR_PPPoE’ 6 PFAIL Sn_IR(PFAIL) Interrupt Mask Valid only in case of ‘SOCKET = 0’ & ‘S0_MR(P3:P0) = S0_MR_PPPoE’ 5 PNEXT Sn_IR(PNEXT) Interrupt Mask Valid only in case of ‘SOCKET = 0’ & ‘S0_MR(P3:P0) = S0_MR_PPPoE’ 4 SENDOK Sn_IR(SENDOK) Interrupt Mask 3 TIMEOUT Sn_IR(TIMEOUT) Interrupt Mask 2 RECV Sn_IR(RECV) Interrupt Mask 1 DISCON Sn_IR(DISCON) Interrupt Mask 0 CON Sn_IR(CON) Interrupt Mask Sn_SR (SOCKET n Status Register)[R][0xFE4003 + 0x100n][0x00] This register provides the status of SOCKET n. SOCKET status are changed when using the Sn_CR register or during packet transmission/reception. The table below describes the different states of SOCKET n Value Symbol Description 0x00 SOCK_CLOSED When DISCON or CLOSE command is used, or ARPTO, or TCPTO occurs, the state changes to SOCK_CLOSED regardless of previous value. |
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