User's Manual

ELECTRICAL DATA S3C2450X RISC MICROPROCESSOR
29-24
Table 29-9. SMC Timing Constants
(VDDi = 1.3V± 0.05V (400MHz), VDDi = 1.2 V± 0.05V (533MHz), T
A
= -40 to 85°C, VDD_SRAM = 1.8V ± 0.1V)
Parameter Symbol Min Typ Max Unit
bank0 2.3 - 5.72 ns
bank1 2.2 6.40
bank2 2.1 6.28
bank3 2.5 7.59
bank4 2.3 6.28
SMC Chip Select Delay
t
CSD
bank5 2.2 6.40
SMC Output Enable Delay
t
OED
2.0 - 6.19 ns
SMC Write Enable Delay
t
WED
2.1 - 6.06 ns
SMC Address Delay
t
ADDRD
2.3 - 6.49 ns
SMC Data Output Delay
t
DOD
2.8 - 6.53 ns
SMC nWAIT setup time
t
WS
2.3 - 5 ns
SMC nWAIT hold time
t
WH
0 - 0 ns
Table 29-10. NFCON Bus Timing Constants
(VDDi = 1.3V± 0.05V (400MHz), VDDi = 1.2 V± 0.05V (533MHz), T
A
= -40 to 85°C, VDD_SRAM = 1.8V ± 0.1V)
Parameter Symbol Min Max Unit
NFCON Chip Enable delay
t
CED
- 10.35 ns
NFCON CLE delay
t
CLED
- 9.86 ns
NFCON ALE delay
t
ALED
- 9.73 ns
NFCON Write Enable delay
t
WED
- 9.71 ns
NFCON Read Enable delay
t
RED
- 10.27 ns
NFCON Write Data delay
t
WDD
- 9.95 ns
NFCON Read Data Setup requirement time
t
RDS
1.00 - ns
NFCON Read Data Hold requirement time
t
RDH
0.20 - ns