ATA5811-PLQW 80 Atmel, ATA5811-PLQW 80 Datasheet - Page 49
ATA5811-PLQW 80
Manufacturer Part Number
ATA5811-PLQW 80
Description
Manufacturer
Atmel
Datasheet
1.ATA5811-PLQW_80.pdf
(92 pages)
Specifications of ATA5811-PLQW 80
Operating Temperature (min)
-40C
Operating Temperature (max)
105C
Operating Temperature Classification
Industrial
Product Depth (mm)
7mm
Product Height (mm)
0.9mm
Product Length (mm)
7mm
Lead Free Status / Rohs Status
Compliant
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Figure 10-7. Serial Timing
11. Operation Modes
11.1
4689F–RKE–08/06
RX Operation
SDO_TMDO
SDI_TMDI
SCK
CS
T
SCK_setup1
X
X can be either V
The transceiver is set to RX operation with the bits OPM0 and OPM1 in control register 1
Table 11-1.
The transceiver is designed to consume less than 1 mA in RX operation while being sensitive to
signals from a corresponding transmitter. This is achieved via the polling circuit. This circuits
enables the signal path periodically for a short time. During this time the Bit-check logic verifies
the presence of a valid transmitter signal. Only if a valid signal is detected the transceiver
remains active and transfers the data to the connected microcontroller. This transfer take place
either via the TX/RX data buffer or via the pin SDO_TMDO. If there is no valid signal present the
transceiver is in sleep mode most of the time resulting in low current consumption. This condition
is called RX polling mode. A connected microcontroller can be disabled during this time.
All relevant parameters of the polling logic can be configured by the connected microcontroller.
This flexibility enables the user to meet the specifications in terms of current consumption, sys-
tem response time, data rate etc.
In RX mode the RF transceiver is enabled permanently and the Bit-check logic verifies the pres-
ence of a valid transmitter signal. If a valid signal is detected the transceiver transfers the data to
the connected microcontroller. This transfer take place either via the TX/RX data buffer or via
the pin SDO_TMDO.
X
T
T
T
Setup
CS_setup
Out_enable
OPM1
1
1
iI
or V
Control Register 1
MSB
T
Hold
MSB
iH
T
Cycle
T
X
Out_delay
MSB-1
OPM0
0
1
MSB-1
X
ATA5811/ATA5812
LSB
T
SCK_setup2
RX polling mode
X
Function
RX mode
T
T
CS_disable
Out_disable
T
X
SCK_hold
49
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