EP7309-CR Cirrus Logic Inc, EP7309-CR Datasheet - Page 18

• 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

EP7309
High-Performance, Low-Power System on Chip
SSI2 Interface
18
SSIRXFR/
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
RXDA
TXDA
SSITXFR
CLK
SSI
SSI
SSI
t
FRd
t
TXd
Parameter

t
D7
D7
Copyright 2001 Cirrus Logic (All Rights Reserved)
TXv
t
t
RXs
t
RXh
clk_per
Figure 7. SSI2 Interface Timing Measurement
t
FRa
t
clkrf
t
FR_per
t
clk_high
D2
D2
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
D1
D1
Min
925
925
750
30
40
0
t
clk_low
D0
D0
Max
1025
1025
512
528
448
80
7
DS507PP1
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns