EP9301-EQ CIRRUS [Cirrus Logic], EP9301-EQ Datasheet - Page 29

• Manufacturer Part Number: EP9301-EQ
• Description: Entry-level ARM9 System-on-chip Processor
• Manufacturer: CIRRUS [Cirrus Logic]

Audio Interface
The following table contains the values for the timings of each of the SPI modes.
Texas Instruments’ Synchronous Serial Format
Microwire
DS636PP5
SCLK cycle time
SCLK high time
SCLK low time
SCLK rise/fall time
Data from master valid delay time
Data from master setup time
Data from master hold time
Data from slave setup time
Data from slave hold time
SSPRXD
SSPTXD/
SSPTXD
SSPRXD
SFRM
SCLK
SFRM
SCLK
Note:
t
clk_high
The tspix_clk is programmable by the user.
MSB
t
clk_high
t
t
clk_per
clk_low
Parameter
t
MSB
t
clk_per
clkrf
8-bit control
©
Copyright 2005 Cirrus Logic (All Rights Reserved)
Figure 17. Microwire Frame Format, Single Transfer
Figure 16. TI Single Transfer Timing Measurement
t
clk_low
4 to 16 bits
LSB
Symbol
t
t
t
clk_high
clk_per
clk_low
t
t
t
t
t
t
DMd
DMs
DMh
clkrf
DSs
DSh
t
clkrf
0
MSB
4 to 16 bits output data
LSB
Entry Level ARM9 System-on-Chip Processor
Min
20
40
20
40
1
-
-
-
-
(tspix_clk) / 2
(tspix_clk) / 2
tspix_clk
Typ
-
-
-
-
-
-
LSB
Max
8
3
-
-
-
-
-
-
-
EP9301
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
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