2 system interface signals – Ricoh R5C841 User Manual
Page 62
R5C841 PCI-CardBus/IEEE 1394/SD Card/Memory Stick/xD/ExpressCard Data Sheet
12345
2004
R
EV
. 1.10
5-9
5.3.2 System Interface signals
System Interface Signals AC Characteristics
(VCC_ROUT= 1.65~1.95V, VCC_PCI3V=3.0~3.6V, VCC_3V=3.0~3.6V, Ta=0~70ºC)
Symbol Parameter
Min
Max
Unit
Note
RI_OUT#, UDIO0-5, INTA#
t5b
RI# to RI_OUT# Delay
50
ns
t5c
Card Status Change to UDIO0-5/INTA# Delay
2Tcyc+0
ns
1
t5d
Card IREQ#/CINT# to UDIO0-5/INTA# Delay
50
ns
SPKROUT
t5e
SPKR#/CAUDIO to SPKROUT Delay
50
ns
Note1: Tcyc is PCICLK cycle time. (Typically 30ns)
System Signals Timing
RI_OUT#
IRQ3-15
INTA#
IREQ#
CINT#
Card Status
Change
t5b
STSCHG#/RI#
SPKR#
CAUDIO
SPKROUT
t5e
t5e
t5d
t5d
t5c
t5b
System Signals Timing