MC33696MOD315EV Freescale Semiconductor, MC33696MOD315EV Datasheet - Page 13

• Manufacturer Part Number: MC33696MOD315EV
• Description: MCU, MPU & DSP Development Tools MC33696 (ECHO) RF C EVAL
• Manufacturer: Freescale Semiconductor

Specifications of MC33696MOD315EV

• Processor To Be Evaluated: MC9S08RG60
• Interface Type: RS-232
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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The receiver is either waiting for an RF transmission or is receiving one. Two different processes are
possible, as determined by the values of the DME bit. The transmitter part is kept off. A state diagram
describes the sequence of operations in each case.
12.1 Data Manager Disabled (DME=0)
Data manager disabled means that the SPI is deselected and raw data is sent directly on the MOSI line,
while SCLK remains at low level.
Two different processes are possible, as determined by the values of the SOE bit.
12.1.1 Data Manager Disabled and Strobe Pin Control
Raw received data is sent directly on the MOSI line.
For all states: At any time, a low level applied to CONFB forces the state machine to state 1, configuration
mode.
Freescale Semiconductor
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State 5:
The receiver is in standby/LVD mode. For further information, see
Mode.” A high level applied to STROBE forces the circuit to state 5b.
State 5b:
The receiver is kept on by the STROBE pin. Raw data is output on the MOSI line.
Receive Mode
If the STROBE pin is tied to a high level before switching to receive mode,
the receiver does not go through an off or standby state.
STROBE = 1
Figure 3. Receive Mode, DME = 0, SOE = 0
MC33696 Data Sheet, Rev. 12
Raw Data on MOSI
Standby/LVD
State 5b
State 5
NOTE
On
STROBE = 0
STROBE = 1
Figure 3
shows the state diagram.
STROBE = 0
Section 14, “Standby: LVD
SPI Deselected
Receive Mode
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