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S3C2410A ELECTRICAL DATA
24-33
Table 24-9. External Bus Request Timing Constants
(V
DD
= 1.8V ± 0.15 / 2.0 V ± 0.1 V, T
A
= -40 to 85 °C, V
EXT
= 3.3V ± 0.3V)
Parameter Symbol Min Typ. Max Unit
eXternal Bus Request Setup time t
XnBRQS
2 – 5 / 4 ns
eXternal Bus Request Hold time t
XnBRQH
– – 1 / 0.5 ns
eXternal Bus Ack Delay t
XnBACKD
9 – 11 / 10 ns
HZ Delay t
HZD
4 – 12 / 11 ns
Table 24-10. DMA Controller Module Signal Timing Constants
(V
DD
= 1.8V ± 0.15 / 2.0 V ± 0.1 V, T
A
= -40 to 85 °C, V
EXT
= 3.3V ± 0.3V)
Parameter Symbol Min Typ. Max Unit
eXternal Request Setup t
XRS
2 – 6 / 5 ns
aCcess to Ack Delay when Low transition t
CADL
9 – 11 / 10 ns
aCcess to Ack Delay when High transition t
CADH
9 – 11 / 10 ns
eXternal Request Delay t
XAD
2 – – SCLK