mc68332acpv25b1 Freescale Semiconductor, Inc, mc68332acpv25b1 Datasheet - Page 71

• Manufacturer Part Number: mc68332acpv25b1
• Description: Technical Summary 32-bit Modular Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

6.5 QSPI Submodule
6.5.1 QSPI Pins
MC68332
MC68332TS/D
The QSPI submodule communicates with external devices through a synchronous serial bus. The QSPI
is fully compatible with the serial peripheral interface (SPI) systems found on other Motorola products.
A block diagram of the QSPI is shown below.
Seven pins are associated with the QSPI. When not needed for a QSPI application, they can be con-
figured as general-purpose I/O pins. The PCS0/SS pin can function as a peripheral chip select output,
slave select input, or general-purpose I/O. Refer to the following table for QSPI input and output pins
and their functions.
PROGRAMMABLE
QUEUE CONTROL
LOGIC ARRAY
COMPARATOR
END QUEUE
REGISTERS
REGISTER
CONTROL
COUNTER
CONTROL
POINTER
POINTER
STATUS
QUEUE
BLOCK
DELAY
LOGIC
Freescale Semiconductor, Inc.
DONE
4
For More Information On This Product,
Figure 14 QSPI Block Diagram
4
4
Go to: www.freescale.com
4
REGISTER
ADDRESS
CHIP SELECT
COMMAND
MSB
8/16-BIT SHIFT REGISTER
Rx/Tx DATA REGISTER
3
QSPI RAM
80-BYTE
LSB
GENERATOR
BAUD RATE
M
M
S
S
MOTOROLA
PCS0/SS
PCS [3:1]
MOSI
MISO
SCK
QSPI BLOCK
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