W7100A-64QFN WIZnet, W7100A-64QFN Datasheet - Page 127
W7100A-64QFN
Manufacturer Part Number
W7100A-64QFN
Description
8-bit Microcontrollers - MCU 8051 CORE+HARDWIRED TCP/IP+MAC+PHY
Manufacturer
WIZnet
Datasheet
1.W7100A.pdf
(156 pages)
Specifications of W7100A-64QFN
Rohs
yes
Interface Type
UART
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larger the data size, the more time to complete the SEND command. Therefore, the user must
properly divide the data to transmit. The ARP
the ARP
First method :
{/* check SEND command completion */
}
Second method :
{
Interrupt Register(IR), Interrupt Mask Register (IMR) and SOCKET n Interrupt Register (Sn_IR).
*/
}
{/* clear remained interrupts */
}
9.2.2.2 Multicast
multicast communication communicates with many but specified others who registered at
multicast-group. Suppose that A, B and C are registered at specified multicast-group. If user
transmits data to multicast-group (contains A), the B and C also receive the DATA for A. To use
multicast communication, the destination list registers to multicast-group by using IGMP
To transmit the next data, user must check that the prior SEND command is completed. The
If user doesn’t need the communication any more, close the SOCKET n.
The broadcast communication communicates with many and unspecified others. But the
while(Sn_IR(SENDOK)==‘0’)
{/* check ARP
}
Sn_IR(SENDOK) = ‘1’;
If (Sn_CR == 0x00) transmission is completed.
If (Sn_IR(TIMEOUT bit) == ‘1’) goto next stage;
/* In this case, if the interrupt of SOCKET n is activated, interrupt occurs. Refer to
Sn_IR = 0x00FF;
IR(n) = ‘1’;
/* set CLOSE command */
Sn_CR = CLOSE;
if (Sn_IR(TIMEOUT)==‘1’) Sn_IR(TIMEOUT)=‘1’; goto Next stage;
Check complete sending / Timeout
Check Finished / SOCKET close
TO
is occurred, the UDP data transmission will be failed.
TO
*/
/* clear previous interrupt of SEND completion */
/* wait interrupt of SEND completion */
TO
can occur when user transmits UDP data. If
Ver. 1.12
127
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