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MAX9671 Evaluation Kit
Detailed Description of Software
User Interface
The user interface (Figure 1) is easy to operate. Use the
mouse, or press the tab key to navigate with the arrow
keys. Each of the buttons correspond to bits in the
command and configuration bytes. By pressing them,
the correct I 2 C-compatible write operation is generated
to update the internal registers of the MAX9671. The
Interface group box indicates the current I 2 C-compati-
ble Device Address , Register Address Sent , and the
Data Sent/Received for the last read/write operation.
This data is used to confirm proper device operation.
The MAX9671 EV kit software splits and groups the
functions of the MAX9671 into three separate cate-
gories. TV , VCR , and Configuration functions can be
accessed by selecting the appropriate tab at the top
left of the MAX9671 EV kit software main window. The
TV and VCR tab sheets of the MAX9671 EV kit software
are again split into two sections, Video Control and
Audio Control .
The device status registers (refer to the MAX9670/
MAX9671 IC data sheet for status register information)
are displayed in the MAX9671 Status group box and
the Video Activity Status group box at the bottom right
of the main window. To read the status register, press
the Read Status button, or check the Automatic
Status Read checkbox to automatically read the status
register every 250ms. The Interrupt Status group box
allows the user to detect interrupts by checking the
Interrupt Enable checkbox.
Press the POR Reset button to reset the MAX9671 reg-
isters and EV kit software to their power-on-reset con-
figuration.
Table 1. Shunt Setting for SMBus/I 2 C Address (JU1)
SHUNT
POSITION
1-2*
1-3
1-4
1-5
DEV_ADDR
VDD
SCL
DIGGND
SDA
B7
1
1
1
1
B6
0
0
0
0
B5
0
0
0
0
B4
1
1
1
1
B3
0
1
0
1
B2
1
0
1
0
B1
1
0
0
1
B0
R/ W
R/ W
R/ W
R/ W
WRITE ADDRESS
(HEX)
0x96
0x98
0x94
0x9A
READ ADDRESS
(HEX)
0x97
0x99
0x95
0x9B
*Default position.
Table 2. MAX9671 EV Kit Jumper Description (JU2–JU7)
JUMPER
JU2
JU3
JU4
JU5
JU6
JU7
*Default position.
SHUNT
POSITION
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
DESCRIPTION
Connect to 1.2V RMS FS
Connect to 1.1V RMS FS
Connect to 1.2V RMS FS
Connect to 1.1V RMS FS
Connect to on-board SDA
Connect to user-supplied SDA
Connect to on-board SCL
Connect to user-supplied SCL
Connect the MAX9671 ’s interrupt output to the on-board MAXQ2000 ’s on-board interrupt input
Connect to user-supplied interrupt
Connect to on-board +3.3V supply
Connect to user-supplied +3.3V
4
_______________________________________________________________________________________
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