msm7584c Oki Semiconductor, msm7584c Datasheet - Page 45

• Manufacturer Part Number: msm7584c
• Description: Pi /4 Shift Qpsk Modem/adpcm Codec
• Manufacturer: Oki Semiconductor

¡ Semiconductor
(Modem)
(13) CR14 (Basic Operation Mode Setting)
CR14
Initial Value
B7, B3, B2: ........ Not used
B6: ..................... Transmission timing clock selection
B5: ..................... Modulation OFF/ON control
B4: ..................... Receive side input IF frequency selection
B1, B0: .............. Device test control bits
B7
—
0
0: TXCI input: 384 kHz TXCO output: APLL 384 kHz output
Transmit data TXD is input synchronously with the rising edge of
TXCI. APLL is ON.
1: TXCI input: 3.84 MHz
divided by 10)
Transmit data TXD is input synchronously with the rising edge of
TXCO. APLL is OFF.
TXC
SEL
B6
0
0: Modulation ON
0: 1.2 MHz
1: 10.8 MHz
These bits should be set to "0" for normal use.
MOD
OFF
B5
0
IFSEL
B4
0
1: Modulation OFF (fixed phase)
B3
—
0
TXCO output: 384 kHz (TXCI
B2
—
0
TEST1
B1
0
MSM7584C
TEST0
B0
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