zic2410 California Eastern Laboratories, zic2410 Datasheet - Page 71

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

PCMD1 (PHY COMMAND1 REGISTER, 0x2201)
This register is used to control the operation of the modem block.
PLLPD (PLL POWER-DOWN REGISTER, 0x2202)
This register is used to control the power-down of the circuits related to the Phase-locked Loop (PLL)
Bit
7:6
3:2
7:5
5
4
1
0
4
3
Rev A
VCOBP
RXOFF
PLLRS
TXOFF
Name
DECS
ENCS
TS
D
Reserved
PLL Reset: The PLLRSTS field is used to reset the PLL circuit. When
the PLLRSTS field is set to ‘0’and the PLLRSTC field is set to ‘1’, PLL
circuit held in reset. The following table shows PLL circuit reset state
based on the values of the PLLRSTC and PLLRSTS fields.
Voltage Controlled Oscillator Buffer Power-down. The VCOBPD
and VCOBPDU fields control the power-down state of the Voltage
Controlled Oscillator (VCO) Buffer circuit. In power-down state, the VCO
Buffer circuit is disabled and draws no current. When the VCOBPU field
is set to ‘1’ and the VCOBPD field is set to ‘0’, the VCO Buffer circuit is
in the power-down state. The following table shows the VCO buffer
circuit state based on the values of the VCOBPD and VCOBPU fields.
Reserved
Decryption Start. When DECS field is set to ‘1’, the decryption is
processed by the MAC block. When the encrypted packet is received,
the data stored in the RX FIFO should be decrypted. The decrypted
data is stored in the RX FIFO again. When the decryption is completed,
an interrupt is sent to the MAC block. The setting of the DECS field is
not cleared automatically after completing decryption and therefore,
should be cleared by the software.
Encryption Start When ENCS field is set to ‘1’, the encryption is
processed by the MAC block. When the transmission of secured
packet is required, the data stored in the TX FIFO should be encrypted.
The encrypted data is stored in the TX FIFO again. When the
encryption is completed, the interrupt occurs at the MAC block. The
setting of the ENCS field is not cleared automatically after completing
encryption and therefore, should be cleared by the software.
Reserved
TX Path Off. It is used to disable the modulation circuit with the TXON
field. When the TXON field is set to’0’ and the TXOFF field is set to’1’,
the modulation circuit of the modem block is always disabled.
RX Path Off. It is used to disable the modulation circuit with the RXON
field. When RXON field is set to’0’ and RXOFF field is set to’1’, the
modulation circuit of a modem block is always disabled.
PLLRSTS
VCOBPD
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
VCOBPU
PLLRSTC
1
0
1
0
Document No. 0005-05-07-00-000
1
0
1
0
Always enabled
Always enabled
Always disabled
Enabled or disabled depending on the control of a
modem block
ZIC2410 Datasheet
Controlled by the modem block
Always in power-up state
Always in power-down state
Always in power-up state
Descriptions
Controlled by the modem block
Always in non-reset
Always in reset
Always in non-reset
VCO Buffer reset state
PLL reset state
Page 71 of 119
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
Value
111
11
01
0
0
1
1
0
0