MT9M019 Aptina Imaging Corporation, MT9M019 Datasheet - Page 11

• Manufacturer Part Number: MT9M019
• Description: 1/5-Inch 1.3Mp CMOS Digital Image Sensor
• Manufacturer: Aptina Imaging Corporation

Single READ from Random Location
Figure 3:
Single READ from Current Location
Figure 4:
PDF: 7723845879/Source:2828556980
MT9M019 DS - Rev. F 5/10 EN
S
S = start condition
P = stop condition
Sr = restart condition
A = acknowledge
A = no-acknowledge
Slave Address 0
S
Single READ from Random Location
Single READ from Current Location
Previous Reg Address, N
Slave Address 1
This sequence (Figure 3 on page 11) starts with a dummy WRITE to the 16-bit address
that is to be used for the READ. The master terminates the WRITE by generating a restart
condition. The master then sends the 8-bit read slave address/data direction byte and
clocks out one byte of register data. The master terminates the READ by generating a no-
acknowledge bit followed by a stop condition. Figure 3 shows how the internal register
address maintained by the MT9M019 is loaded and incremented as the sequence
proceeds.
This sequence (Figure 4) performs a read using the current value of the MT9M019
internal register address. The master terminates the READ by generating a no-acknowl-
edge bit followed by a stop condition. The figure shows two independent READ
sequences.
A Reg Address[15:8] A Reg Address[7:0]
Previous Reg Address, N
A
slave to master
master to slave
Read Data
A
P
11
S
MT9M019: 1/5-Inch 1.3Mp CMOS Digital Image Sensor
Slave Address
Reg Address, N+1
A
Sr
Slave Address
1
A
Reg Address, M
Two-Wire Serial Register Interface
Aptina reserves the right to change products or specifications without notice.
Read Data
1
A
Read Data
©2006 Aptina Imaging Corporation. All rights reserved.
A
N+2
P
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A
M+1
P