CS181002-CQR Cirrus Logic Inc, CS181002-CQR Datasheet - Page 26

• Manufacturer Part Number: CS181002-CQR
• Description: Audio DSPs IC CobraNet Audio Networking Processor
• Manufacturer: Cirrus Logic Inc

Specifications of CS181002-CQR

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CobraNet Hardware User’s Manual
Host Management Interface (HMI)
7.3 Host Port Timing - Intel
(C
NOTES:1. The system designer should be aware that the actual maximum speed of the communication port may
26
Address setup before HCS and HRD low or HCS and HWR
low
Address hold time after HCS and HRD low or HCS and HWR
high
Delay between HRD then HCS low or HCS then HRD low
Data valid after HCS and HRD low
HCS and HRD low for read
Data hold time after HCS or HRD high
Data high-Z after HCS or HRD high
HCS or HRD high to HCS and HRD low for next read
HCS or HRD high to HCS and HWR low for next write
HRD rising to HREQ rising
Delay between HWR then HCS low or HCS then HWR low
Data setup before HCS or HWR high
HCS and HWR low for write
Data hold after HCS or HWR high
HCS or HWR high to HCS and HRD low for next read
HCS or HWR high to HCS and HWR low for next write
HWR rising to HREQ falling
L
= 20 pF)
be limited by the firmware application. Hardware handshaking on the HREQ pin/bit should be observed
to prevent overflowing the input data buffer.
Parameter
Write
Read
®
Mode
©
Copyright 2005 Cirrus Logic, Inc.
Symbol
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
Min
24
30
30
24
30
30
5
5
0
8
0
8
8
-
-
-
-
Max
18
18
12
12
-
-
-
-
-
-
-
-
-
-
-
-
-
DS651UM23
Version 2.3
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns