HDSP-3400 Agilent(Hewlett-Packard), HDSP-3400 Datasheet - Page 41

• Manufacturer Part Number: HDSP-3400
• Description: 20 mm (0.8 inch) Seven Segment Displays
• Manufacturer: Agilent(Hewlett-Packard)

retransmit the HDM8513A slave address, this time with the read/not write bit set to one (read).
This will be acknowledged by the HDM8513A, which then assumes the role of slave transmitter
and transmits the requested byte. This byte should be acknowledged by the master receiver. If no
stop condition is generated by the master, the HDM8513A will increment its word address pointer
and transmit the next byte of information. This process is detailed in Figure 26.
Table 13: I2C Slave Address
S
I2C_ADD0
SLAVE ADDRESS 0 A
0
1
0
1
0
1
0
1
7 Bits
S: Start Condition
A:
P: Stop Condition
Acknowledge
acknowledgement
from slave
R/W
I2C_ADD1
0
0
1
1
0
0
1
1
WORD ADDRESS
F
8 Bits
IGURE
acknowledgement
27: I2C R
I2C_ADD2
from slave
HDM8513A becomes
A S
0
0
0
0
1
1
1
1
slave transmitter
EAD FROM THE
SLAVE ADDRESS 1 A
7 Bits
acknowledgement
HDM8513A
from slave
R/W
DATA BYTE
I2C Address
0000000
0000011
0001100
0001111
0110000
0110011
0111100
0111111
memory word address
DATA BYTE
auto increment
last byte
acknowledgement
memory word address
from master
acknowledgement
auto increment
A
from master
A
P
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