STV5730 查看數據表（PDF） - STMicroelectronics
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STV5730 Datasheet PDF : 19 Pages
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STV5730
1.4.4 - Position Register
11
VERTICAL POSITION
6
5
0
HORIZONTAL POSITION
HORIZONTAL POSITION Any value from 6 to 63
VERTICAL POSITION
Any value from 1 to 63
1.4.5 - Mode Register
11
10
9
8
7
6
5
4
3
2
1
0
M11 M10
M9
M8
M7
M6
M5
M4
M3
M2
M1
M0
M0 : M0 = 0 : the BAR pin is disabled
M0 = 1 : the BAR pin has an action on the line PLL
M1 : M1 = 0 : the missing sync pulses are not detected
M1 = 1 : the missing sync pulses are detected
M2 : M2 = 0 : the MUTE pin is forced to 0
M2 = 1 : the MUTE pin delivers the internal MUTE signal
M3 : M3 = 0 : the MUTE time constant is 8 lines
M3 = 1 : the MUTE time constant is 32 lines
M4 : M4 = 0 : the sync is not re-inserted
M4 = 1 : the sync is re-inserted for improved text stability
M5 : M5 = 0 : the gain of pins VIDEO OUT1 & VIDEO OUT2 is 0dB.
M5 = 1 : the gain of pins VIDEO OUT1 & VIDEO OUT2 is 6dB.
M6 : M6 = 0 : the color encoder is enabled (PAL or NTSC)
M6 = 1 : the color encoder is disabled (B&W or SECAM)
M7 : M7 = 0 : the VIDEO OUT2 pin outputs the VIDEO IN signal
M7 = 1 : the VIDEO OUT2 pin outputs the composite sync
M8 : M8 = 0 : the VIDEO OUT2 pin is in high impedance state
M8 = 1 : the VIDEO OUT2 pin is in low impedance state
M9 : This Mode bit has to be kept at a low level.
M10 : M10 = 0 : No delay compensation
M10 = 1 : It enables the delay compensation of the internal sync extractor.
M11 : M11 = 0 : The mute signal output is synchronized on vertical sync in order to limit its transitions.
M11 = 1 : The mute signal is not synchronized on vertical sync thus accelerating the VIDEO IN
presence detection (useful in full page mode).
2 - THE MICROPROCESSOR SERIAL INTERFACE
The STV5730 is down loaded by the microprocessor through a three wire serial interface : DATA, CLK,
CSN. The CLK and CSN signals are internally ORed in order to validate the transfer when the STV5730 is
chip selected only (i.e. CSN = 0). The CSN rising edge validates the internal data transfer.
2.1 - Message Formats (see Figure 2)
16-bit, 8-bit and 0-bit formats are available. The 8-bit and 0-bit message formats may be useful to speed
up the STV5730 down loading.
15
12 11
87654
0000
BUF[11:8]
STRU[7:6] 0
DEPL[4:0]
0
ADDRESS
This 16-bit address message loads the serial interface write pointer. This address is incremented after each
data message.
15
12 11
0
0001
DATA[11:0]
This 16-bit data message writes the data at the location indicated by the write pointer.
DATA
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