IDT88P8344 Integrated Device Technology, IDT88P8344 Datasheet - Page 89

• Manufacturer Part Number: IDT88P8344
• Description: Spi Exchange 4 X Spi-3 To Spi-4 Issue 1.0
• Manufacturer: Integrated Device Technology

11.6.6.2 Serial microprocessor interface (serial
peripheral interface mode)
Timing Characteristics
information of the timing characteristics is shown in below and timing diagram is
shown in Figure 41, Microprocessor serial peripheral interface timing diagram.
IDT88P8344 SPI EXCHANGE 4 x SPI-3 TO SPI-4
Symbol
f
f
t
t
t
t
t
t
t
t
t
OP
CSH
CSD
CLD
CLH
DIS
DIH
PD
DF
CSS
CLL
The maximum SPI Data transfer clock frequency is 2 MHz. The detail
SCLK
SDO
CSB
SCLK Frequency
Minimum CSB High Time
CSB Setup Time
CSB Hold Time
SCLK Clock Disable Time
SCLK Clock High Time
SCLK Clock Low Time
SDI Data Setup Time
SDI Data Hold Time
SDO Output Delay
SDO Output Disable Time
SDI
Description
High Impedance
Figure 41. Microprocessor serial peripheral interface timing diagram
t
CSS
t
DIS
Valid Input
t
DIH
t
CLH
Min.
100
100
205
205
150
50
50
50
Max.
150
t
2.0
50
PD
t
CLL
89
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Valid Output
t
CSD
INDUSTRIAL TEMPERATURE RANGE
t
DF
t
CSH
t
CLD
High Impedance
APRIL 10, 2006
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