CY7C67300_07 Datasheet, PDF (10/98 Pages) Cypress Semiconductor – EZ-Host™ Programmable Embedded USB Host and Peripheral Controller with Automotive AEC Grade Support

CY7C67300
Table 14. IDE Throughput
Mode
ATA/ATAPI-4
Min. Cycle Time
PIO Mode 0
600 ns
PIO Mode 1
383 ns
PIO Mode 2
240
PIO Mode 3
180 ns
PIO Mode 4
120 ns
T = System clock period = 1/48 MHz.
Actual
Min. Cycle Time
30T = 625 ns
20T = 416.7 ns
13T = 270.8 ns
10T = 208.3 ns
8T = 166.7 ns
ATA/ATPI-4
Max. Transfer Rate
3.33 MB/s
5.22 MB/s
8.33 MB/s
11.11 MB/s
16.67 MB/s
Actual
Max. Transfer Rate
3.2 MB/s
4.8 MB/s
7.38 MB/s
9.6 MB/s
12.0 MB/s
IDE Features
• Programmable IO mode 0–4
• Block mode transfers
• Direct memory access to/from internal memory through the
IDE data register
IDE Pins
Table 15. IDE Interface Pins
Pin Name
Pin Number
IORDY
46
IOR
47
IOW
48
CS1
50
CS0
52
A2
53
A1
54
A0
55
D15
56
D14
57
D13
58
D12
59
D11
60
D10
61
D9
65
D8
66
D7
86
D6
87
D5
89
D4
90
D3
91
D2
92
D1
93
D0
94
Charge Pump Interface
VBUS for the USB OTG port can be produced by EZ-Host
using its built in charge pump and some external components.
Ensure the circuit connections look similar to the following di-
agram.
Figure 5. Charge Pump
CSWITCHA
CY7C67300
CSWITCHB
OTGVBUS
D1
C1
D2
VBUS
C2
Component details:
• D1 and D2: Schottky diodes with a current rating greater
than 60 mA
• C1: Ceramic capacitor with a capacitance of 0.1 µF
• C2: Make capacitor value no more that 6.5 µF since that is
the maximum capacitance allowed by the USB OTG speci-
fications for a dual role device. The minimum value of C2 is
1 µF. There are no restrictions on the type of capacitor for
C2.
If the VBUS charge pump circuit is not to be used,
CSWITCHA, CSWITCHB, and OTGVBUS can be left uncon-
nected.
Charge Pump Features
• Meets OTG Supplement Requirements, see Table 54, DC
Characteristics: Charge Pump on page 84 for details.
Charge Pump Pins
Table 16. Charge Pump Interface Pins
Pin Name
OTGVBUS
CSwitchA
CSwitchB
Pin Number
11
13
12
Document #: 38-08015 Rev. *H
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