mc68hc05p9a Freescale Semiconductor, Inc, mc68hc05p9a Datasheet - Page 109

• Manufacturer Part Number: mc68hc05p9a
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

Data Movement
11-mc68hc05p9a
MOTOROLA
Connecting the SIOP data register of a master MCU with the SIOP of a
slave MCU forms a 16-bit circular shift register. During an SIOP transfer,
the master shifts out the contents of its SIOP data register on its
PB5/SDO pin. At the same time, the slave MCU shifts out the contents
of its SIOP data register on its PB5/SDO pin.
master and slave exchange the contents of their data registers.
Freescale Semiconductor, Inc.
For More Information On This Product,
SIOP SHIFT REGISTER
Figure 62. Master/Slave SIOP Shift Register Operation
MASTER MODE
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SIOP IN
SIOP
SDO
SCK
SDI
Figure 62
SDO
SDI
SCK
SIOP SHIFT REGISTER
SLAVE MODE
shows how the
SIOP IN
Operation
SIOP
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