MC33594FTAE Freescale Semiconductor, MC33594FTAE Datasheet - Page 15

• Manufacturer Part Number: MC33594FTAE
• Description: RF Receiver UHF RECEIVER
• Manufacturer: Freescale Semiconductor
• Type: Receiverr

Specifications of MC33594FTAE

• Package / Case: LQFP-24
• Operating Frequency: 434 MHz
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STATE MACHINE WITH STROBE PIN CONTROL
Programming SOE=0 sets ROMEO2 to state 6. The circuit is in Sleep mode.
A high level applied on STROBE sets the circuit into state 7. If an ID or its complement is detected, the state
machine advances to state 8. If not, it will stay in state 7 as long as STROBE is high.
After ID or its complement detection, ID byte is sent to the microcontroller on MOSI line at 310kBd. This warns
the microcontroller that data are received which means that an high level has to be maintained on STROBE. At
any time a low level applied on STROBE sets the circuit into state 6.
© Motorola, Inc., 2002.
Figure 16 details the state machine when the strobe oscillator is disabled (SOE=0).
State 6:
State 7:
State 8:
STROBE=0
STROBE=0
STROBE=0
STROBE=0
STROBE=0
Figure 16: State machine with STROBE pin control
Freescale Semiconductor, Inc.
For More Information On This Product,
MOTOROLA SEMICONDUCTORS PRODUCTS
Output data & clock
Waiting for ID word
Waiting for Header
Go to: www.freescale.com
Send an ID word
Header received
EOM received
STROBE=1
Sleep mode
ID detected
Output data
Run mode
Run mode
Run mode
Run mode
Run mode
State 10
State 11
State 6
State 7
State 8
HE=1
State 9
MC33594
15
HE=0
SPI master
revision 1.1, 5 February 2002