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CY7C68300C_09 Datasheet, PDF (11/41 Pages) Cypress Semiconductor – EZ-USB AT2LP™ USB 2.0 to ATA/ATAPI Bridge
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CY7C68300C, CY7C68301C
CY7C68320C, CY7C68321C
Table 1. AT2LP Pin Descriptions
Note: (Italic pin names denote pin functionality during CY7C68300A compatibility mode) (continued)
100
TQFP
63
64
65
66
67
68
69
70[3]
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
56 56
QFN SSOP
N/A N/A
Pin Name
NC
Pin Default State
Type at Startup
NC
No connect.
Pin Description
N/A
32
33
34
35
36[3]
37
38
39
40
41
N/A
42
43
44
45
46
47
48
N/A
N/A
N/A
N/A
GND
GND
Ground.
39
VCC
PWR
VCC. Connect to 3.3V power source.
40
INTRQ
I[1]
Input ATA interrupt request.
41
DA0
O/Z[1] Driven HIGH ATA address.
after 2 ms
delay
42
DA1
O/Z[1] Driven HIGH ATA address.
after 2 ms
delay
43
DRVPWRVLD
I
Input Device presence detect. (See “DRVPWRVLD” on
(DA2)
page 14). Configurable logical polarity is controlled by
EEPROM address 0x08. This pin must be pulled HIGH
if functionality is not utilized.
Alternate function. Input when the EEPROM configu-
ration byte 8 has bit 7 set to one. The input value is
reported through EP1IN (byte 0, bit 0).
44
CS0#
O/Z[1] Driven HIGH ATA chip select.
after 2 ms
delay
45
CS1#
O/Z[1] Driven HIGH ATA chip select.
after 2 ms
delay
46
DA2
O/Z[1] Driven HIGH ATA address.
(VBUS_PWR_VALID)
after 2 ms
delay
47
ARESET#
O/Z[1]
ATA reset.
48
GND
GND
Ground.
N/A
NC
NC
No connect.
49
RESET#
I
Input Chip reset (See “RESET#” on page 15).
50
VCC
PWR
51 VBUS_ATA_ENABLE I
(ATA_EN)
52
DD8
I/O[1]
53
DD9
I/O[1]
54
DD10
I/O[1]
55
DD11
I/O[1]
Input
Hi-Z
Hi-Z
Hi-Z
Hi-Z
VCC. Connect to 3.3V power source.
VBUS detection (See “VBUS_ATA_ENABLE” on
page 14).
ATA data bit 8.
ATA data bit 9.
ATA data bit 10.
ATA data bit 11.
N/A
GND
Ground.
N/A
VCC
PWR
N/A
NC
NC
VCC. Connect to 3.3V power source.
No connect.
36[3] N/A
13[3]
54[3]
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
I/O[3]
General purpose I/O pins (See “GPIO Pins” on
page 14). The GPIO pins must be tied to GND if
functionality is not used.
Document 001-05809 Rev. *C
Page 11 of 41
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