JDP2S01T Datasheet, PDF (140/150 Pages) Toshiba Semiconductor – UHF~VHF Band RF Attenuator Applications

Philips Semiconductors
ISP1362
Single-chip USB OTG controller
20.2.3 DC single-cycle DMA timing (8237 mode)
Table 155: Dynamic characteristics: DC single-cycle DMA timing (8237 mode)
Symbol Parameter
Conditions
Min
Typ
t_ASRP
DREQ2 off after DACK2 on
-
-
T_cy(DREQ2) cycle time signal DREQ2
180
-
Max
Unit
40
ns
-
ns
DREQ2
T _RC
t _ASRP
DACK2⁽¹⁾
(1) Programmable polarity: shown as active LOW.
Fig 35. DC single-cycle DMA timing (8237 mode).
20.2.4 DC single-cycle DMA read timing in DACK-only mode
Table 156: Dynamic characteristics: DC single-cycle DMA read timing in DACK-only mode
Symbol
Parameter
Conditions
Min
Typ
t_ASRP
t_ASAP
t_ASAP + t_APRS
t_ASDV
t_APDZ
DREQ off after DACK on
DACK pulse width
DREQ on after DACK off
data valid after DACK on
data hold after DACK off
-
-
25
-
180
-
-
-
-
-
004aaa111
Max
Unit
40
ns
-
ns
-
ns
22
ns
3
ns
DREQ2
DACK2⁽¹⁾
DATA
t _ASRP
t _ASAP
t _ASDV
(1) Programmable polarity: shown as active LOW.
Fig 36. DC single-cycle DMA read timing in DACK-only mode.
t _APRS
t _APDZ
004aaa112
9397 750 12337
Product data
Rev. 03 — 06 January 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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