MCM20027 Motorola, MCM20027 Datasheet - Page 28

• Manufacturer Part Number: MCM20027
• Description: Color SXGA Digital Image Sensor 1280 x 1024 pixel progressive scan solid state image sensor with integrated CDS/PGA/ADC / digital programming / control
• Manufacturer: Motorola

MOTOROLA
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
10.9 Register Write
Writing the MCM20027 registers is accomplished with
the following I 2 C transactions (see
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10.10 Register Read
Reading the MCM20027 registers is accomplished with
the following I 2 C transactions (see
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•
Master transmits a START
Master transmits the MCM20027 Slave Calling Ad-
dress with “WRITE” indicated (BYTE=66
01100110
MCM20027 slave sends acknowledgment by forc-
ing the SDATA Low during the 9th clock, if the Call-
ing Address was received
Master transmits the MCM20027 Register Address
MCM20027 slave sends acknowledgment by forc-
ing the SDATA Low during the 9th clock after re-
ceiving the Register Address
Master transmits the data to be written into the reg-
ister at the previously received Register Address
MCM20027 slave sends acknowledgment by forc-
ing the SDATA Low during the 9th clock after re-
ceiving the data to be written into the Register
Address
Master transmits STOP to end the write cycle
Master transmits a START
Master transmits the MCM20027 Slave Calling Ad-
dress with “WRITE” indicated (BYTE=66
01100110
MCM20027 slave sends acknowledgment by forc-
ing the SData Low during the 9th clock, if the Calling
Address was received
Master transmits the MCM20027 Register Address
MCM20027 slave sends acknowledgment by forc-
ing the SData Low during the 9th clock after receiv-
ing the Register Address
Master transmits a Repeated START
Master transmits the MCM20027 Slave Calling Ad-
dress with “READ” indicated (BYTE = 67
01100111
MCM20027 slave sends acknowledgment by forc-
ing the SDATA Low during the 9th clock, if the Call-
ing Address was received
At this point, the MCM20027 transitions from a
“Slave-Receiver” to a “Slave-Transmitter”
MCM20027 sends the SCLK and the Register Data
contained in the Register Address that was previ-
b
b
b
)
)
)
Figure
Figure
17):
18):
h
h
h,
, 102
, 102
103
d
d
d
,
,
,
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ously received from the master; MCM20027 transi-
tions to slave-receiver
Master does not send an acknowledgment (NAK)
Master transmits STOP to end the read cycle
Revision 8.0 - 28 November 2001 :
ImageMOS
ImageMOS
MCM20027
28