CS48540-CQZ Cirrus Logic Inc, CS48540-CQZ Datasheet - Page 14

• Manufacturer Part Number: CS48540-CQZ
• Description: Audio DSPs High Perform. 32-Bit Audio Decoder DSP
• Manufacturer: Cirrus Logic Inc

Specifications of CS48540-CQZ

• Operating Supply Voltage: 1.8 V
• Mounting Style: SMD/SMT
• Package / Case: LQFP-48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CS485xx Family Data Sheet
32-bit Audio Decoder DSP Family
5.10 Switching Characteristics — Serial Control Port - SPI Master Mode
14
SCP_CLK frequency
SCP_CS# falling to SCP_CLK rising
SCP_CLK low time
SCP_CLK high time
Setup time SCP_MISO input
Hold time SCP_MISO input
SCP_CLK low to SCP_MOSI output valid
SCP_CLK low to SCP_CS# falling
SCP_CLK low to SCP_CS# rising
Bus free time between active SCP_CS#
SCP_CLK falling to SCP_MOSI output high-Z
SCP_MOSI
SCP_MISO
SCP_BSY#
SCP_IRQ#
SCP_CS#
SCP_CLK
1. The specification f
2. See
3. SCP_CLK PERIOD refers to the period of SCP_CLK as being used in a given application. It does not refer to a tested parameter
maximum speed of the communication port may be limited by the firmware application.
Section
5.7.
1
Parameter
spisck
f
spisck
t
spicss
indicates the maximum speed of the hardware. The system designer should be aware that the actual
A6
t
spidsu
Figure 3. Serial Control Port - SPI Slave Mode Timing
0
A5
1
t
spidh
3
Copyright 2009 Cirrus Logic, Inc.
2
t
spickh
t
spickl
CONFIDENTIAL
A0
Symbol
6
t
t
t
t
f
t
t
t
t
t
t
spisck
spicss
spickh
spidsu
spidov
spicsh
spicsx
spickl
spicsl
spidh
spidz
t
spidov
R/W
7
Min
20
20
9
5
7
-
-
-
-
-
MSB
MSB
0
(SCP_CLK PERIOD)/2
(SCP_CLK PERIOD)/2
5
11*DCLKP +
11*DCLKP +
3*DCLKP
t
Typical
spiirqh
6
LSB
LSB
7
t
spibsyl
F
t
spicsh
Max
xtal
20
8
-
-
-
-
-
-
-
-
/2
t
spicsdz
2
DS734F3
t
spiirql
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns