CS495303-CVZR Cirrus Logic Inc, CS495303-CVZR Datasheet - Page 18

• Manufacturer Part Number: CS495303-CVZR
• Description: Audio DSPs IC 32-bit Decodr DSP w/Dual DSP Engine
• Manufacturer: Cirrus Logic Inc

Specifications of CS495303-CVZR

• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CS4953xx Data Sheet
32-bit Audio Decoder DSP Family
5.14 Switching Characteristics — Parallel Control Port - Intel
18
Address setup before PCP_CS and PCP_RD low or PCP_CS and
PCP_WR low
Address hold time after PCP_CS and PCP_RD low or PCP_CS and
PCP_WR high
Delay between PCP_RD then PCP_CS low or PCP_CS then
PCP_RD low
Data valid after PCP_CS and PCP_RD low
PCP_CS and PCP_RD low for read
Data hold time after PCP_CS or PCP_RD high
Data high-Z after PCP_CS or PCP_RD high
PCP_CS or PCP_RD high to PCP_CS and PCP_RD low for next
read
PCP_CS or PCP_RD high to PCP_CS and PCP_WR low for next
write
PCP_RD rising to PCP_IRQ rising
Delay between PCP_WR then PCP_CS low or PCP_CS then
PCP_WR low
Data setup before PCP_CS or PCP_WR high
PCP_CS and PCP_WR low for write
Data hold after PCP_CS or PCP_WR high
PCP_CS or PCP_WR high to PCP_CS and PCP_RD low for next
read
PCP_CS or PCP_WR high to PCP_CS and PCP_WR low for next
write
PCP_WR 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
1
1
1
1
the firmware application. Hardware handshaking on the PCP_BSY pin/bit should be observed to prevent
overflowing the input data buffer. AN288 CS4953xx /CS497xxx Firmware User’s Manual should be consulted for
the firmware speed limitations.
Parameter
Read
Write
Copyright 2009 Cirrus Logic
Symbol Min
t
t
irdirqhl
iwrbsyl
t
t
t
t
t
t
t
t
t
t
irdtw
iwpw
iwtrd
t
t
t
t
icdw
idhw
irpw
t
idsu
idhr
icdr
idis
iwd
iah
idd
ias
ird
24
30
30
24
30
30
5
5
0
8
0
8
8
-
-
-
-
®
Slave Mode
2*DCLKP + 20
Typical
Max
18
18
12
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DS705PP6
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns