hmp8112acn Harris Corporation, hmp8112acn Datasheet - Page 19

• Manufacturer Part Number: hmp8112acn
• Description: Ntsc/pal Video Decoder
• Manufacturer: Harris Corporation

NUMBER
NUMBER
NUMBER
NUMBER
NUMBER
NUMBER
15 - 10
15 - 10
7 - 0
9 - 8
7 - 0
7 - 0
7 - 0
9 - 8
BIT
BIT
BIT
BIT
BIT
BIT
HSYNC Pulse
END Time (LSB)
Not Used
HSYNC Pulse
END Time (MSB)
PLL Filter Adjust
Register
PLL Horizontal Sync
Detect Window
DC RESTORE
START Time (LSB)
Not Used
DC RESTORE
START Time (MSB)
FUNCTION
FUNCTION
FUNCTION
FUNCTION
FUNCTION
FUNCTION
This register provides a programmable delay for the external HSYNC pulse. This is the
lower byte of the 10-bit word.
Write Ignored, Read 0’s
This register provides a programmable delay for the external HSYNC pulse. This is the
upper byte of the 10-bit word.
The Phase Locked Loop (PLL) time constants can be changed for testing purposes. It is
recommended that the default value of 0x20 always be used. The reset state is 0x00.
These bits control the PLL horizontal sync detect window. This window sets the length
of time that the line lock PLL will allow the detection of the HSYNC. HSYNC outside of
this window are declared missing and will cause the missing sync logic to start counting
missing syncs.
This register provides a programmable delay for the internal DC RESTORE signal. This
is the lower byte of the 10-bit word.
Write Ignored, Read 0’s
This register provides a programmable delay for the internal DC RESTORE signal. This
is the upper byte of the 10-bit word.
TABLE 25. DC RESTORE START TIME (MSB) REGISTER
TABLE 24. DC RESTORE START TIME (LSB) REGISTER
TABLE 23. PLL SYNC DETECT WINDOW REGISTER
TABLE 21. HSYNC END TIME (MSB) REGISTER
TABLE 20. HSYNC END TIME (LSB) REGISTER
TABLE 22. PLL FILTER ADJUST REGISTER
SUB ADDRESS = 0x0E
SUB ADDRESS = 0x0F
SUB ADDRESS = 0x10
SUB ADDRESS = 0x11
SUB ADDRESS = 0x12
SUB ADDRESS = 0x13
HMP8112A
4-19
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
0010 0000
0000 0000
0000 0000
1101 1101
0011 0111
0000 0000
RESET
RESET
RESET
RESET
RESET
RESET
STATE
STATE
STATE
STATE
STATE
STATE
(0xDD)
(0x3F)
(0x20)
(0x00)
(0x00)
(0x00)
B
B
B
B
B
B