Rainbow Electronics DS3131 - Manual (Page 163)

DS3131
163 of 174
AC CHARACTERISTICS: LOCAL BUS IN BRIDGE MODE (LMS = 0)
(V
DD
= 3.0V to 3.6V, T
A
= 0°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Delay Time from the Rising Edge of PCLK
to Output Valid from Three-state
t1 9 17 ns
Delay Time from the Rising Edge of PCLK
to Three-State from Output Valid
t2 7 15 ns
Delay Time from the Rising Edge of PCLK
to Output Valid from an Already Active
Drive State
t3 6 14 ns
LD[15:0] Setup Time to the Rising Edge of
PCLK
t4 1 ns
LD[15:0] Hold Time from the Rising Edge
of PCLK
t5 5 ns
Input Setup Time to the Rising Edge of
PCLK
t6 1 ns
Input Hold Time from the Rising Edge of
PCLK
t7 5 ns
Delay Time from the Rising Edge of PCLK
to the Rising Edge of LCLK
t8 4 7 ns
Delay Time from the Falling Edge of
PCLK to the Falling Edge of LCLK
t9 5 8 ns
Figure 13-2. Local Bus Bridge Mode (LMS = 0) AC Timing Diagram
Data Valid
PCLK
LINT, LRDY
LHLDA (
LBG)
LD[15:0]
LA[19:0], LWR (LR/W),
LRD (LDS), LBHE
LA[19:0], LD[15:0], LBHE,
LWR (LR/W), LRD (DS)
Data Valid
Three-state
Data Valid
LA[19:0], LWR (LR/W),
LRD (DS), LHOLD (LBR),
LBGACK
t8
LCLK
t9
Three-state
t3
t5 t4
t6 t7
t2
t1