MC44BS373CR2 Просмотр технического описания (PDF) - Motorola => Freescale
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MC44BS373CR2 Datasheet PDF : 52 Pages
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I2C Bit Mapping
9 I2C Bit Mapping
Table 8. I2C Write-Mode Bit Mapping
Write Mode
Chip address
C1—High-order bits
C0—Low-order bits
FM—High-order bits
FL—Low-order bits
Bit 7
1
1
PWC
0
N5
Bit 6
1
0
OSC
TPEN
N4
Bit 5
0
SO
ATT
N11
N3
Bit 4
0
LOP
SFD1
N10
N2
Bit 3
1
PS
SFD0
N9
N1
Bit 2 Bit 1
See Table 11.
X3
X2
SREF
X5
N8
N7
N0
X1
Table 9. I2C Read-Mode Bit Mapping
Read Mode
Chip address
R—Status byte
Bit 7
1
—
Bit 6
1
—
Bit 5
0
—
Bit 4
0
—
Bit 3
1
—
Bit 2 Bit 1
See Table 12.
Y2
Y1
Bit 0
0
SYSL
X4
N6
X0
Bit 0
1
OOR
Table 10. I2C Bit Mapping Bit Descriptions
Name
SO
LOP
PS
X0–X5
SYSL
PWC
OSC
ATT
Description
Sound oscillator on/off
0 Sound oscillator on (normal mode)
1 Sound oscillation disabled (oscillator and PLL section bias turned off)
Logic output port
0 LOP pin is low voltage.
1 LOP pin is high impedance.
Picture-to-sound carrier ratio
0 Picture-to-sound carrier ratio is 12 dB.
1 Picture-to-sound carrier ratio is 16 dB.
Test mode bits
Note: All bits are 0 for normal operation. For further information, see Table 17 and Table 18.
System L enable—Selects AM sound and positive video modulation
0 System B/G enabled, system L disabled (FM sound and negative video modulation)
1 System L enabled, system B/G disabled (AM sound and positive video modulation)
Peak white clip enable/disable
0 Peak white clip on (system B/G)
1 Peak white clip off (system L)
UHF oscillator on/off
0 Normal operation
1 UHF oscillator disabled (oscillator and PLL sections bias turned off)
Modulator output attenuated-sound and video modulators on/off
0 Normal operation
1 Modulator output attenuation (sound and video modulators sections bias turned off)
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
—
8
MC44BS373CA Data Sheet
MOTOROLA
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