CS495313-CQZR Cirrus Logic Inc, CS495313-CQZR Datasheet - Page 16

• Manufacturer Part Number: CS495313-CQZR
• Description: Audio DSPs IC 32-bit Decodr DSP w/Dual DSP Engine
• Manufacturer: Cirrus Logic Inc

Specifications of CS495313-CQZR

• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-144
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CS4953xx Data Sheet
32-bit Audio Decoder DSP Family
5.12 Switching Characteristics — Serial Control Port - I
16
SCP_CLK frequency
SCP_CLK low time
SCP_CLK high time
SCP_SCK rising to SCP_SDA rising or falling for START or
STOP condition
START condition to SCP_CLK falling
SCP_CLK falling to STOP condition
Bus free time between STOP and START conditions
Setup time SCP_SDA input valid to SCP_CLK rising
Hold time SCP_SDA input after SCP_CLK falling
SCP_CLK low to SCP_SDA out valid
SCP_CLK falling to SCP_IRQ rising
NAK condition to SCP_IRQ low
SCP_CLK rising to SCB_BSY low
SCP_BSY
SCP_CLK
SCP_SDA
SCP_IRQ
1. The specification f
the actual maximum speed of the communication port may be limited by the firmware application. Flow control
using the SCP_BSY pin should be implemented to prevent overflow of the input data buffer.
t
iicstscl
t
iicckcmd
1
Parameter
iicck
t
iicsu
A6
indicates the maximum speed of the hardware. The system designer should be aware that
0
t
iich
Figure 5. Serial Control Port - I
1
t
iicckh
t
iicckl
A0
6
Copyright 2009 Cirrus Logic
t
iicr
R/W
7
t
iicdov
ACK
Symbol
8
t
iicckcmd
t
t
t
t
t
iicstscl
t
t
t
t
f
t
t
iicirqh
iicbsyl
iicckh
iicdov
iicstp
iicirql
iicckl
t
iicf
iicck
iicbft
iicsu
iich
2
MSB
C Slave Mode Timing
0
Min
1.25
1.25
1.25
1.25
100
2.5
20
3
-
-
-
-
1
f
2
iicck
C Slave Mode
3
3
t
iicirqh
*
*
DCLKP + 20
DCLKP + 20
Typical
6
LSB
7
t
iiccbsyl
3
ACK
*
8
DCLKP + 40
Max
400
18
t
t
iicirql
-
-
-
-
-
-
iicstp
t
iicckcmd
DS705PP5
Units
t
kHz
iicbft
µs
µs
µs
µs
µs
µs
ns
ns
ns
ns
ns
ns