MSM7584C View Datasheet(PDF) - Oki Electric Industry
Part Name
Description
MFG CO.
'MSM7584C' PDF : 57 Pages View PDF
¡ Semiconductor
MSM7584C
PDN0, PDN1, PDN2
Various power down controls.
PDN0 controls the standby mode/communication mode; PDN1 controls the modulator; PDN2
controls the demodulator. Refer to Table 1 for details.
Table 1 Description of Modem Power Down Control
PDN0 PDN2 PDN1
Operation State
Mode Name
Standby 0 0/1 0 Entire system is powered down. The control register is not reset. Mode A
Mode
0 0/1 1 Modulator unit is powered off. (VREF and PLL also powered off.) Mode B
Demodulator unit is powered on.
Commu- 1
0
0 Modulator unit is powered off. (VREF and PLL are powered on.) Mode C
nication
Mode
I and Q outputs are in a high impedance state.
Only the demodulator clock regenerator unit is powered on.
1
0
1 Modulator unit is powered off. (VREF and PLL are powered on.) Mode D
I and Q outputs are in a high impedance state.
Demodulator unit is powered on.
1
1
0 Modulator unit is powered on.
Only the demodulator clock regenerator unit is powered on.
1
1
1 Modulator unit is powered on.
Demodulator unit is powered on.
Mode E
Mode F
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