Samsung YP-P10 User Manual download pdf (Page 590)

S3C2440A RISC MICROPROCESSOR ELECTRICAL DATA

27-37

Table 27-10. External Bus Request Timing Constants

(V

DD

= 1.2 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

4 – – ns

External bus request hold time t

XnBRQH

1 – – ns

External bus ack delay t

XnBACKD

4 – 10 ns

HZ delay t

HZD

2 – 6 ns

Table 27-11. DMA Controller Module Signal Timing Constants

(V

DD

= 1.2 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

5 – – ns

Access to ack delay during low transition t

CADL

3 – 8 ns

Access to ack delay during high transition t

CADH

3 – 8 ns

External request delay t

XAD

2 – – SCLK

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