mc68331cpv20b1 Freescale Semiconductor, Inc, mc68331cpv20b1 Datasheet - Page 138

• Manufacturer Part Number: mc68331cpv20b1
• Description: Mc68331 32 Bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

6
6-12
Figure 6-5 Flowchart of QSPI Master Operation (Part 1)
EXECUTE SERIAL TRANSFER
EXECUTE STANDARD DELAY
READ COMMAND CONTROL
FROM RAM USING QUEUE
STORE RECEIVED DATA
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IN RAM USING QUEUE
ASSERT PERIPHERAL
QSPI CYCLE BEGINS
AND TRANSMIT DATA
POINTER ADDRESS
POINTER ADDRESS
(MASTER MODE)
CHIP-SELECT(S)
For More Information On This Product,
BEEN WRITTEN
PROGRAMMED
HAS NEWQP
SCK DELAY
DISABLED
IS PCS TO
IS QSPI
A1
B1
?
?
?
NO
NO
NO
QUEUED SERIAL MODULE
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YES
YES
YES
EXECUTE PROGRAMMED DELAY
WORKING QUEUE POINTER
CHANGED TO NEWQP
QSPI FLOW 2
USER’S MANUAL
MC68331