EP7309-CR Cirrus Logic Inc, EP7309-CR Datasheet - Page 21

• Manufacturer Part Number: EP7309-CR
• Description: 32-Bit Microcontroller IC
• Manufacturer: Cirrus Logic Inc

Specifications of EP7309-CR

• Controller Family/series: (ARM7)
• Core Size: 32 Bit
• No. Of Timers 8/12/16/32 Bits: 0 / 0 / 2 / 0
• Interface: SSI, UART
• Embedded Interface Type: SSI, UART
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SSI2 Interface
DS507F1
SSICLK period (slave mode)
SSICLK high time
SSICLK low time
SSICLK rise/fall time
SSICLK rising edge to RX and/or TX frame sync high time
SSICLK rising edge to RX and/or TX frame sync low time
SSIRXFR and/or SSITXFR period
SSIRXDA setup to SSICLK falling edge time
SSIRXDA hold from SSICLK falling edge time
SSICLK rising edge to SSITXDA data valid delay time
SSITXDA valid time
S S IR X F R /
R X D A
T X D A
S S IT X F R
C L K
S S I
S S I
S S I
t
FR d
t
TXd
Parameter
t
D 7
D 7
TXv
t
t
R Xs
t
R Xh
clk_per
Figure 8. SSI2 Interface Timing Measurement
©
Copyright Cirrus Logic, Inc. 2005
t
FR a
(All Rights Reserved)
t
clkrf
t
FR _per
t
clk_high
D 2
D 2
High-Performance, Low-Power System on Chip
Symbol
t
t
t
t
clk_high
FR_per
clk_per
clk_low
t
t
t
t
t
t
t
clkrf
FRd
FRa
RXs
RXh
TXd
TXv
D 1
D 1
Min
185
925
925
960
960
3
3
3
-
-
-
t
clk_low
D 0
D 0
Max
2050
1025
1025
990
990
18
3
8
7
7
2
Unit
EP7309
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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