isp1581 NXP Semiconductors, isp1581 Datasheet - Page 64

• Manufacturer Part Number: isp1581
• Description: Isp1581 Hi-speed Universal Serial Bus Peripheral Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 13462
Product data
Fig 26. GDMA slave mode timing (BURST > 01H, MODE = 02H).
DREQ is asserted once per N transfers (N is determined by the BURST value). Example shown here: N = 2.
Data strobe: DACK (read/write).
(1) Programmable polarity: shown as active LOW.
(2) Programmable polarity: shown as active HIGH.
(write) DATA [ 15:0 ]
(read) DATA [ 15:0 ]
DIOR/DIOW
DREQ
DACK
(2)
(1)
(1)
HIGH
Fig 27. EOT timing in Split Bus mode.
Fig 28. EOT timing in Generic Processor mode.
t su1
(1) Programmable polarity: shown as active LOW.
(1) Programmable polarity: shown as active LOW.
Note: EOT should be valid for 36 ns (minimum) when DIOR/DIOW is active.
Note: EOT should be valid for 36 ns (minimum) when RD/WR is active.
t d2
t w1
t su2
Rev. 06 — 23 December 2004
RD/WR
EOT
DREQ
DIOR/DIOW
(1)
t h2
EOT
DREQ
t w2
t h3
(1)
(1)
T cy1
t h1
36 ns (min)
t h1
36 ns (min)
t h1
Hi-Speed USB peripheral controller
t d1
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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ISP1581
MGT505
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