zic2410 California Eastern Laboratories, zic2410 Datasheet - Page 75

• Manufacturer Part Number: zic2410
• Description: Single-chip Solution, Compliant With Zigbee
• Manufacturer: California Eastern Laboratories

TXRFPD (RF TX PATH POWER-DOWN REGISTER, 0x2206)
This register is used to power down circuits related to transmission in RF block.
Bit
7:6
2:1
3
2
1
0
5
4
3
Rev A
VGAPU
ADCPU
TXUMB
TXUMP
RLPFP
Name
PAPD
UFPD
U
D
Reserved and should be fixed to ‘1’.
RX Low-pass Filter Power-up. Controls the power-up state of the RX
LPF circuit. In the power-up state, the RX LPF circuit is enabled. When
the RLPFPU field is set to ‘0’, the RX LPF circuit is in the power-up
state. See RLPFPD above for truth table.
Variable Gain Amplifier Power-up. Controls the power-up state of the
VGA circuit. In the power-up state, the VGA circuit is enabled. When
the VGAPU field is set to ‘0’, the VGA circuit is in the power-up state.
See VGAPD above for truth table.
Analog-to-Digital Converter Power-up. Controls the power-up state of
the ADC circuit. In the power-up state, the ADC circuit is enabled.
When the ADCPU field is set to ‘0’, the ADC circuit is in the power-up
state. See ADCPD above for truth table.
Reserved
TX Up-mixer Buffer Power-down. With the TXUMBUFPU field,
controls the power-down state of the TX Up-mixer Buffer circuit. In the
power-down state, the TX Up-mixer Buffer circuit is disabled and draws
no current. When the TXUMBUFPU field is set to ‘1’ and the
TXUMBUFPD field is set to’0’, the TX Up-mixer Buffer circuit is in the
power-down state. The following table shows the TX Up-mixer Buffer
circuit state based on the values of the TXUMBUFPD and TXUMBUFPU
fields.
Reserved
Power Amplifier Power-down. With PAPU field, controls the power-
down state of the Power Amplifier (PA) circuit. In power-down state, the
PA circuit is disabled and draws no current. When the PAPU field is set
to ‘1’ and the PAPD field is set to’0’, the PA circuit is in the power-down
state. The following table shows the PA circuit state based on the
values of the PAPD and PAPU fields.
TX Up-mixer Power-down. With the TXUMPU field, controls the
power-down state of the TX Up-mixer circuit. In the power-down state,
the TX Up-mixer circuit is disabled and draws no current. When the
TXUMPU field is set to ‘3’ and then TXUMPD field is set to’0’, the TX
Up-mixer circuit is in the power-down state. The following table shows
the TX Up-mixer circuit state based on the values of the TXUMPD and
TXUMPU fields. The values of ‘1’ and ‘2’ are not used in these fields.
TXUMBUFPD
TXUMPD
PAPD
1
1
0
0
3
3
0
0
1
1
0
0
PAPU
TXUMPU
TXUMBUFPU
1
0
1
0
Document No. 0005-05-07-00-000
3
0
3
0
1
0
1
0
ZIC2410 Datasheet
Controlled by the modem block
Always power-up state.
Always power-down state.
Always power-up state.
Descriptions
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.
TX Up-mixer Buffer state
TX Up-mixer state
PA state
Page 75 of 119
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
Value
11
00
1
1
1
1
0
1
0