隆 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
is a data shift clock pulse input pin. DIN is an address and data input pin. DOUT is a data output
pin. Figure 5 shows an input/output timing diagram.
,
,
DEN
EXCK
DIN
W
A2
A1
A0
B7
B6
B5
B4
B3
B2
B1
B0
DOUT
High Impedance
(a) Data Write Timing Diagram
DEN
EXCK
DIN
R
A2
A1
A0
DOUT
High Impedance
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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