z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 143

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

PS019921-0308
Input Sample Time
(CLKPOL = 0)
(CLKPOL = 1)
Transfer Format PHASE Equals Zero
Figure 24
The two SCK waveforms show polarity with CLKPOL reset to 0 and with CLKPOL set to
one. The diagram may be interpreted as either a Master or Slave timing diagram because
the SCK Master-In/Slave-Out (MISO) and Master-Out/Slave-In (MOSI) pins are directly
connected between the Master and the Slave.
Transfer Format PHASE Equals One
Figure 25
one. Two waveforms are depicted for SCK, one for CLKPOL reset to 0 and another for
CLKPOL set to 1.
MOSI
MISO
SCK
SCK
SS
displays the timing diagram for an SPI transfer in which PHASE is cleared to 0.
on page 130 displays the timing diagram for an SPI transfer in which PHASE is
Bit7
Bit7
Figure 24. SPI Timing When PHASE is 0
Bit6
Bit6
Bit5
Bit5
Bit4
Bit4
Bit3
Bit3
Z8 Encore! XP
Bit2
Bit2
Bit1
Bit1
Product Specification
Serial Peripheral Interface
Bit0
Bit0
®
F64XX Series
129