MC145740F Просмотр технического описания (PDF) - Motorola => Freescale
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производитель
MC145740F Datasheet PDF : 12 Pages
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CONTROL REGISTER
EN
(NOTE 6)
6
3
1
(NOTE 1)
7
CLK
DATA
1
2
3
4
5
6
7
8
9
10 11 12
13 14
7
9
8
2
1
5
4
(LSB CLOCK)
T3
T2 T1
T0
A3
A2 A1
A0 CD1 CD0 SQ M2 M1 M0
10
R/W
STATUS REGISTER
EN
(NOTE 6)
12
CLK
DATA
R/W
11
18
3
5
(NOTE 5)
4
1
2
3
0
1
2
1
17
13
2
1
(NOTE 2) 4
5
(NOTE 3)
D0 D1 D2 D3 D0 D1 D2 D0
D1
14
16
(NOTE 4)
HIGH IMPEDANCE
15
NOTES:
1. The data in front of the EN signal will be latched.
2. The latched data will be repeated until there is an EN pulse.
3. The detected data will be updated with the next EN pulse.
4. After the R/W pin becomes inactive, the data will be lost.
5. D1 corresponds to CLK1.
6. The EN and CLK signals need to be set at the logic low level when the R/W signal changes.
7. The CLK signal must be held low when the EN signal is high.
Figure 4. Serial Interface Timing
MC145740
6
MOTOROLA
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