CS495313-CQZ Cirrus Logic Inc, CS495313-CQZ Datasheet - Page 20

• Manufacturer Part Number: CS495313-CQZ
• Description: Audio DSPs 32-Bit Decoder DSP w/Dual DSP Engine
• Manufacturer: Cirrus Logic Inc

Specifications of CS495313-CQZ

• 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
5.15 Switching Characteristics — Parallel Control Port - Motorola
20
Address setup before PCP_CS# and PCP_DS# low
Address hold time after PCP_CS# and PCP_DS# low
Delay between PCP_DS# then PCP_CS# low or PCP_CS# then
PCP_DS# low
Data valid after PCP_CS# and PCP_DS# low with PCP_R/W# high
PCP_CS# and PCP_DS# low for read
Data hold time after PCP_CS# or PCP_DS# high after read
Data high-Z after PCP_CS# or PCP_DS# high after read
PCP_CS# or PCP_DS# high to PCP_CS# and PCP_DS# low for
next read
PCP_CS# or PCP_DS# high to PCP_CS# and PCP_DS# low for
next write
PCP_RW# rising to PCP_IRQ# falling
Delay between PCP_DS# then PCP_CS# low or PCP_CS# then
PCP_DS# low
Data setup before PCP_CS# or PCP_DS# high
PCP_CS# and PCP_DS# low for write
PCP_R/W# setup before PCP_CS# AND PCP_DS# low
PCP_R/W# hold time after PCP_CS# or PCP_DS# high
Data hold after PCP_CS# or PCP_DS# high
PCP_CS# or PCP_DS# high to PCP_CS# and PCP_DS# low with
PCP_R/W# high for next read
PCP_CS# or PCP_DS# high to PCP_CS# and PCP_DS# low for
next write
PCP_RW# rising to PCP_BSY# falling
1. The system designer should be aware that the actual maximum speed of the communication port may be limited by
the firmware application. Hardware handshaking on the PCP_BSY# pin/bit should be observed to prevent
overflowing the input data buffer. AN288 CS4953xx Firmware Uses’s Manual should be consulted for the firmware
speed limitations.
1
1
1
Parameter
1
Read
Write
®Copyright 2008 Cirrus Logic, Inc.
Symbol
t
t
t
mrwirqh
t
t
mrwbsyl
t
t
t
t
mrwhld
t
t
t
t
mrwsu
t
mrdtw
mwpw
mwtrd
t
t
t
t
mcdw
mdhw
mrpw
t
mdsu
mcdr
mdhr
mdis
mwd
mas
mah
mdd
mrd
Min
24
30
30
24
24
30
30
5
5
0
8
0
8
8
8
-
-
-
-
2*DCLKP + 20
®
Slave Mode
Max
19
18
12
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DS705PP2
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns