ELECTRICAL DATA S3C2440A RISC MICROPROCESSOR
27-38
Table 27-10 External Bus Request Timing Constants
(VDD = 1.2 V ± 0.1 V, TA = -40 to 85 °C, VEXT = 3.3V ± 0.3V)
Parameter Symbol Min Typ. Max Unit
External Bus Request Setup Time tXnBRQS 2 – 4 ns
External Bus Request Hold Time tXnBRQH 0 – 1 ns
External Bus Ack Delay tXn BACKD 4 – 10 ns
HZ Delay tHZD 2 – 6 ns
Table 27-11 DMA Controller Module Signal Timing Constants
(VDD = 1.2 V ± 0.1 V, TA = -40 to 85 °C, VEXT = 3.3V ± 0.3V)
Parameter Symbol Min Typ. Max Unit
External Request Setup tXRS 3 – 5 ns
Access To Ack Delay During Low Transition tCADL 3 – 8 ns
Access To Ack Delay During High Transition tCADH 3 – 8 ns
External Request Delay tXAD 2 – – SCLK