msm7582b Oki Semiconductor, msm7582b Datasheet - Page 10

• Manufacturer Part Number: msm7582b
• Description: Pie/4 Shift Qpsk Modem
• Manufacturer: Oki Semiconductor

¡ Semiconductor
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
DOUT
DEN
EXCK
DIN
DOUT
High Impedance
Figure 5 MCU Interface Input/Output Timing Diagram
W
R
A2
A2


A1
A1
A0
A0
(a) Data Write Timing Diagram
(b) Data Read Timing Diagram
B7
B7
High Impedance
B6
B6
B5
B5
B4
B4


    
B3
B3
B2
B2
B1
B1
B0
B0
MSM7582/7582B
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