¡ Semiconductor
MSM7582/7582B
DEN , EXCK, DIN, DOUT
Serial control ports for the microprocessor interface.
The MSM7582 and MSM7582B contain a 6-byte control register. An external CPU uses these pins
to read data from and write data to the control register. DEN is an enable signal input pin. EXCK
, , isadatashiftclockpulseinputpin.DINisanaddressanddatainputpin.DOUTisadataoutput
pin. Figure 5 shows an input/output timing diagram.
DEN
EXCK
DIN
DOUT
W A2 A1 A0 B7 B6 B5 B4 B3 B2 B1 B0
High Impedance
(a) Data Write Timing Diagram
DEN
EXCK
DIN
R A2 A1 A0
DOUT HighImpedance
B7 B6 B5 B4 B3 B2 B1 B0
(b) Data Read Timing Diagram
Figure 5 MCU Interface Input/Output Timing Diagram
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