isp1181 NXP Semiconductors, isp1181 Datasheet - Page 59

• Manufacturer Part Number: isp1181
• Description: Isp1181 Full-speed Universal Serial Bus Interface Device
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 61:
9397 750 08938
Product data
Symbol
Burst (see
t
t
t
t
Burst EOT (see
t
t
t
t
RSIH
ILRP
IHAP
IHIL
EOT
ISRP
RLIS
WLIS
Fig 30. Burst mode DMA timing.
Dynamic characteristics: burst mode DMA timing
Figure
RD/WR
DREQ
DACK
Parameter
input RD/WR HIGH after
DREQ on
DREQ off after input RD/WR
LOW
DACK off after input RD/WR
HIGH
DMA burst repeat interval
(input RD/WR HIGH to LOW)
EOT pulse width
DREQ off after input EOT on
input EOT on after RD LOW
input EOT on after WR LOW
Figure
30)
19.5 DMA timing: burst mode
31)
t RSIH
Conditions
EOT on;
DACK on;
RD/WR LOW
Rev. 04 — 30 October 2001
t IHIL
Min
22
-
0
90
22
-
-
-
t ILRP
8-bit bus
Max
-
60
-
-
-
40
22
22
t IHAP
© Koninklijke Philips Electronics N.V. 2001. All rights reserved.
Min
22
-
0
180
22
-
-
-
Full-speed USB interface
16-bit bus
Max
-
60
-
-
-
40
89
89
ISP1181
MGS796
Unit
ns
ns
ns
ns
ns
ns
ns
ns
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