zic2410 California Eastern Laboratories, zic2410 Datasheet - Page 72
zic2410
Manufacturer Part Number
zic2410
Description
Single-chip Solution, Compliant With Zigbee
Manufacturer
California Eastern Laboratories
Datasheet
1.ZIC2410.pdf
(119 pages)
- Current page: 72 of 119
- Download datasheet (4Mb)
PLLPU (PLL POWER-UP REGISTER, 0x2203)
This register is used to control the power-up of circuits related to Phase-locked Loop (PLL)
Bit
7:5
2
1
0
4
3
2
1
Rev A
VCOPD
DIVPD
VCOBP
VCOPU
DIVPU
PLLRS
Name
CPPD
TC
U
Voltage Controlled Oscillator Power-down. With the VCOPU field,
controls the power-down state of the Voltage Controlled Oscillator (VCO)
circuit. In power-down state, VCO circuit is disabled and draws no
current. When the VCOPU field is set to ‘1’ and the VCOPD field is set
to’0’, the VCO circuit is in the power-down state. The following table
shows the VCO circuit state based on the values of the VCOPD and
VCOPU fields.
Divider Power-down. With the DIVPU field, controls the power-down
state of the Divider circuit. In power-down state, the Divider circuit is
disabled and draws no current. When the DIVPU field is set to ‘1’ and
the DIVPD field is set to’0’, the Divider circuit is in the power-down state.
The following table shows the Divider circuit state based on the values of
the DIVPD and DIVPU fields.
Charge Pump Power-down. With the CPPU field, controls the power-
down state of the Charge Pump (CP) circuit. In the power-down state,
the CP circuit is disabled and draws no current. When the CPPU field is
set to ‘1’ and the CPPD field is set to’0’, the CP circuit is in power-down
state. The following table shows the CP circuit state based on the
values of the CPPD and CPPU fields.
Reserved
PLL Reset Clear. PLLRSTC field is used to release the reset PLL
circuit. When PLLRSTC field is set to ‘0’, the reset of PLL circuit is
released.
Voltage Controlled Oscillator Buffer Power-up. Controls the power-
up state of the VCO Buffer circuit. In the power-up state, the VCO Buffer
circuit is enabled. When the VCOBPU field is set to ‘0’, the VCO Buffer
circuit is in power-up state. See VCOBPD above for truth table.
Voltage Controlled Oscillator Power-up. Controls the power-up state
of the VCO circuit. In the power-up state, the VCO circuit is enabled.
When the VCOPU field is set to ‘0’, the VCO circuit is in a power-up
state. See VCOPD above for truth table.
Divider Power-up. Controls the power-up state of the Divider circuit. In
the power-up state, the Divider circuit is enabled. When the DIVPU field
is set to ‘0’, the Divider circuit is in the power-up state. See DIVPD
above for the truth table.
VCOPD
DIVPD
CPPD
1
1
0
0
1
1
0
0
1
1
0
0
VCOPU
DIVPU
CPPU
1
0
1
0
1
0
1
0
1
0
1
0
Document No. 0005-05-07-00-000
Controlled by the modem block
Always power-up state.
Always power-down state
Always power-up state
ZIC2410 Datasheet
Controlled by the modem block
Always power-up state.
Always power-down state
Always power-up state
Controlled by the modem block
Always power-up state.
Always power-down state
Always power-up state.
Descriptions
Divider state
VCO state
CP state
Page 72 of 119
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
Value
111
0
0
0
1
1
1
1
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