ISL29044A_14 Datasheet, PDF (11/19 Pages) Intersil Corporation – Low Power Ambient Light and Proximity Sensor with Internal IR-LED and Digital Output

ISL29044A
BURST READ
Burst read operation is identical to the Byte Read operation.
After the first Data byte is transmitted, the master responds with
an acknowledge, indicating it requires additional data. The
device continues to output data for each acknowledge received.
The master terminates the read operation by not responding with
an acknowledge but issuing a STOP condition (refer to Figure 21).
For more information about the I²C standard, please consult the
Philips^™ I²C specification documents.
SIGNAL FROM
DEVICE ADDRESS
MASTER DEVICE ^START
WRITE
ADDRESS BYTE
DEVICE ADDRESS
START
READ
SIGNAL AT SDA
SIGNALS FROM
SLAVE DEVICE
10001000
A
C
K
10001001
A
A
C
C
K
K
FIGURE 20. BYTE ADDRESS READ SEQUENCE
DATA BYTE
STOP
SIGNAL FROM
DEVICE ADDRESS
MASTER
DEVICE ^START
WRITE
ADDRESS BYTESTARTDEVICREEAADDDRESS
DATA BYTE 1
DATA BYTE 2
DATA BYTE n
STOP
SIGNAL AT
10001000
10001001
SDA
SIGNALS
A
A
A
A
A
FROM SLAVE
C
C
C
C
C ^{(“n” is any integer}
DEVICE
K
K
K
K
K
greater than 1)
FIGURE 21. BURST READ SEQUENCE
11
FN8419.1
April 19, 2013