W7100A WIZnet, W7100A Datasheet - Page 95

• Manufacturer Part Number: W7100A
• Description: 8-bit Microcontrollers - MCU 8051 CORE+HARDWIRED TCP/IP+MAC+PHY
• Manufacturer: WIZnet

Specifications of W7100A

• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 255 B
• Data Ram Size: 64 KB
• On-chip Adc: No
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 80 C
• Package / Case: LQFP-100
• Mounting Style: SMD/SMT
• Interface Type: UART
• Program Memory Type: Flash

© Copyright 2011 WIZnet Co., Inc. All rights reserved.
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)
Sn_CR register or during packet transmission/reception.
The table below describes the different states of SOCKET n
Value
0x00
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_SR (SOCKET n Status Register)[R][0xFE4003 + 0x100n][0x00]
This register provides the status of SOCKET n. SOCKET status are changed when using the
Bit
PRECV
3
2
1
0
7
6
5
4
3
2
1
0
7
SOCK_CLOSED
TIMEOUT
TIMEOUT
SENDOK
Symbol
DISCON
DISCON
PRECV
PNEXT
PFAIL
RECV
RECV
CON
CON
PFAIL
Symbol
6
TIMEOUT Interrupt, when ARP timeout or TCP timeout occurs
Receive Interrupt, whenever data packet is received from a peer
Disconnect Interrupt, when FIN of FIN/ACK packet is received from a
peer
Connect Interrupt occurs only one time when changing the SOCKET
status to SOCK_Established
Sn_IR(PRECV) Interrupt Mask
Valid only in case of ‘SOCKET = 0’ & ‘S0_MR(P3:P0) = S0_MR_PPPoE’
Sn_IR(PFAIL) Interrupt Mask
Valid only in case of ‘SOCKET = 0’ & ‘S0_MR(P3:P0) = S0_MR_PPPoE’
Sn_IR(PNEXT) Interrupt Mask
Valid only in case of ‘SOCKET = 0’ & ‘S0_MR(P3:P0) = S0_MR_PPPoE’
Sn_IR(SENDOK) Interrupt Mask
Sn_IR(TIMEOUT) Interrupt Mask
Sn_IR(RECV) Interrupt Mask
Sn_IR(DISCON) Interrupt Mask
Sn_IR(CON) Interrupt Mask
PNEXT
5
When DISCON or CLOSE command is used, or ARP
occurs, the state changes to SOCK_CLOSED regardless of
previous value.
SEND_OK
4
TIMEOUT
Description
3
Description
RECV
2
DISCON
Ver. 1.12
1
TO
, or TCP
CON
0
TO
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