EVB-PIC24 WIZnet, EVB-PIC24 Datasheet - Page 74
EVB-PIC24
Manufacturer Part Number
EVB-PIC24
Description
Development Boards & Kits - PIC / DSPIC W3150A+EVAL BOARD BASED ON PIC24
Manufacturer
WIZnet
Datasheet
1.EVB-PIC24.pdf
(111 pages)
Specifications of EVB-PIC24
Rohs
yes
Product
Development Kits
Interface Type
RS-232
Data Bus Width
16 bit
Dimensions
50 mm x 40 mm
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DHCP Message of <Fig 3.26> is managed by RIP_MSG Data Type defined in <Table 3-33>. Refer to
“inet/dhcp.h”
0
typedef struct _RIP_MSG
{
}RIP_MSG;
op (1)
secs (2)
u_char op;
u_char htype;
u_char hlen;
u_char hops;
u_long xid;
u_int
u_int
u_char ciaddr[4];
u_char yiaddr[4];
u_char siaddr[4];
u_char giaddr[4];
u_char chaddr[16];
u_char sname[64];
u_char file[128];
u_char OPT[312];
htype (1)
© Copyright 2006 WIZnet Co., Inc. All rights reserved.
secs;
flags;
options (312)
chaddr (16)
sname (64)
ciaddr (4)
siaddr (4)
giaddr (4)
file (128)
15
xid (4)
<Table 3-32: DHCP Message Data Type>
16
<Fig 3.26: DHCP Message Format>
hlen (1)
flags (2)
// DHCP_BOOTREQEUST or DHCP_BOOTREPLY
// DHCP_HTYPE10MB
// DHCP_HLENETHERNET
// DHCP_HOPS
// DHCP_XID
// DHCP_SECS
// DHCP_FLAGSBROADCAST
hops (1)
31
5
4
4
B
e
y
s
t
B : Leftmost Bit
MBZ : Must Be ZERO (Reserved for future use)
If this bit is set to 1, the DHCP Message SHOULD
be sent as using an IP Broadcast address
(preferably 255.255.255.255) as the IP destination
address.
B
0 1
MBZ
15 bit
64
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