MT312C ZARLINK [Zarlink Semiconductor Inc], MT312C Datasheet - Page 77

• Manufacturer Part Number: MT312C
• Description: Satellite Channel Decoder
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

11.6 Primary 2-Wire Bus Timing
Where: S = Start
Note 1.The rise time depends on the external bus pull up resistor.
CLK1 clock frequency
Bus free time between a STOP and START condition.
Hold time (repeated) START condition.
LOW period of CLK1 clock.
HIGH period of CLK1 clock.
Set-up time for a repeated START condition.
Data hold time (when input).
Data set-up time
Rise time of both CLK1 and DATA1 signals.
Rise time of both CLK1 and DATA1 signals, (100pF to ground)
Set-up time for a STOP condition.
Sr = Restart, i.e. Start without stopping first.
P = Stop.
DATA1
CLK1
Parameter: Primary 2-wire bus only
Figure 26 - One DiSEqC™ data byte - 0x11 (hex) plus parity bit
P
t
BUFF
S
Table 8 - Primary 2-wire bus timing
t
HD;STA
t
LOW
t
t
R
HD;DAT
t
HIGH
t
t
F
Microprocessor Control
SU;DAT
t
SU;STA
Symbol
t
t
t
t
t
SU;STO
HD;STA
SU;STA
HD;DAT
SU;DAT
t
t
t
f
BUFF
HIGH
LOW
Sr
CLK
t
t
R
F
t
SU;STO
Min
200
200
450
600
200
100
100
200
20
0
Value
P
note 1
Max
450
MT312
Unit
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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