W3100A Datasheet, PDF (46/63 Pages) List of Unclassifed Manufacturers – i2Chip W3100A

Sequential byte write sequentially sends START, DEVICE ADDRESS, 2 Byte address of the actual register to be accessed, and data to be written before sending STOP.
As a result, MCU can designate the address of the data to be written once, which allows for the data to be written sequentially and the address to automatically
increase by 1.
SEQUENTIAL BYTE WRITE
S
T
A
R
T
SDA
LINE
M
S
B
W
R
I
DEVICE
T
ADDRESS
E
L RAM
S / CS
B WK B
WORD
ADDRESS0(1B)
L AM
S CS
B KB
WORD
ADDRESS1(1B)
L AM
S CS
B KB
DATA(1B)
.........
LA
M
SC
S
BK
B
DATA(1B)
S
T
O
P
LA
SC
BK
In order to set up the address of the register to be accessed, sequential byte read first sends START, DEVICE ADDRESS and 2 Byte register address before sending
STOP. Later, once again, START, DEVICE ADDRESS is sent and actual DATA is sequentially read before sending STOP. Also at this time, the address
automatically increases by 1.
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