CS497024-CVZ Cirrus Logic Inc, CS497024-CVZ Datasheet - Page 19

• Manufacturer Part Number: CS497024-CVZ
• Description: Audio DSPs Multi-Channel HD Audio Decoder
• Manufacturer: Cirrus Logic Inc

Specifications of CS497024-CVZ

• Operating Temperature Range: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.15 Switching Characteristics — Parallel Control Port - Motorola
DS752PP8
Address setup before PCP_CS# and PCP_DS# low
Address hold time after PCP_CS# and PCP_DS# low
Read
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
Write
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. CS4953x4/CS4970x4 System Designer’s Guide should be consulted for the
firmware speed limitations.
1
1
1
Parameter
1
Copyright 2009 Cirrus Logic
Symbol
t
t
t
mrwbsyl
mrwirqh
t
t
t
t
t
t
mrwhld
t
t
t
t
t
mrdtw
mwpw
mrwsu
mwtrd
t
t
mcdw
mdhw
t
t
mrpw
t
mdsu
mcdr
mdhr
mwd
mdis
mah
mdd
mas
mrd
32-bit High Definition Audio Decoder DSP Family
Min
24
30
30
24
24
30
30
5
5
0
8
0
8
8
8
-
-
-
-
2*DCLKP + 20
®
Slave Mode
CS4970x4 Data Sheet
Max
19
18
12
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
19