CS495313-CQZR Cirrus Logic Inc, CS495313-CQZR Datasheet - Page 18

• 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
5.14 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 Firmware Uses’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
iwpw
iwtrd
t
t
t
t
irdtw
icdw
idhw
irpw
t
idsu
icdr
idhr
idis
iwd
ias
iah
idd
ird
24
30
30
24
30
30
5
5
0
8
0
8
8
-
-
-
-
®
Slave Mode
2*DCLKP + 20
Typical
Max
18
18
12
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DS705PP5
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns