ADV7174KCPZ Analog Devices Inc, ADV7174KCPZ Datasheet - Page 29

• Manufacturer Part Number: ADV7174KCPZ
• Manufacturer: Analog Devices Inc

Specifications of ADV7174KCPZ

• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: LFCSP EP
• Pin Count: 40
• Lead Free Status / RoHS Status: Compliant

MODE REGISTER 1 (MR1)
Bits:
Address:
Figure 39 shows the various operations under the control of Mode Register 1. This register can be read from as well as written to.
Table 10. MR1 Bit Description
Bit Name
Interlace Control
Closed Captioning Field
Selection
DAC Control
Reserved
Color Bar Control
MR17–MR10
SR4–SR0 = 01H
MR17
0
1
COLOR BAR
CONTROL
DISABLE
ENABLE
Bit No.
MR10
MR12–MR11
MR16–MR15
and MR13
MR14
MR17
MR17
MR16
0
1
CONTROL
NORMAL
POWER-DOWN
DAC A
MR16
MR15
0
1
Description
This bit is used to set up the output to interlaced or noninterlaced mode. Power-down mode
is relevant only when the part is in composite video mode.
These bits control the fields on which closed captioning data is displayed; closed captioning
information can be displayed on an odd field, even field, or both fields.
These bits can be used to power down the DACs. Power-down can be used to reduce the
power consumption of the ADV7174/ADV7179 if any of the DACs are not required in the
application.
A Logic 1 must be written to this register.
This bit can be used to generate and output an internal color bar test pattern. The color bar
configuration is 100/7.5/75/7.5 for NTSC and 100/0/75/0 for PAL. It is important to note that
when color bars are enabled, the ADV7174/ADV7179 is configured in a master timing mode.
CONTROL
NORMAL
POWER-DOWN
DAC B
MR15
1 SHOULD BE
WRITTEN TO
THIS BIT
RESERVED
Figure 39. Mode Register 1
MR14
Rev. B | Page 29 of 52
MR13
0
1
CONTROL
MR13
NORMAL
POWER-DOWN
DAC C
MR12 MR11
0
0
1
1
MR12
CLOSED CAPTIONING
FIELD SELECTION
0
1
0
1
NO DATA OUT
ODD FIELD ONLY
EVEN FIELD ONLY
DATA OUT
(BOTH FIELDS)
MR11
MR10
0
1
INTERLACE
INTERLACED
NONINTERLACED
CONTROL
MR10
ADV7174/ADV7179