CY7C68310 Datasheet, PDF (3/34 Pages) Cypress Semiconductor – ISD-300LP™ Low-Power USB 2.0 to ATA/ATAPI Bridge IC

CY7C68310
4.2 Pin Overview
Pin
Number
2
5
6
8
9
18–20, 25
22
23
26
27
28
29
30–32
33
34
35
36
37, 38
56, 54, 52,
49,46, 44,
42, 39, 41,
43, 45, 48,
51, 53, 55,
57
58
62
Pin Name
RPU
RSDP
DP
DM
RSDM
TEST[0:3]
XI
XO
nEJECT
SYSIRQ
DRVPWRVLD
ATAEN
GPIO[0:1],
GPIO2_nHS
SCANEN
LOWPWR
nRESET
nATARST
TMC[1:2]
DD[0:15]
DMARQ
nDIOW
Pin
Direction
Pin Type
Pin Description
O
USB Output D+ pull-up source. Power source for 1.5k pull-up resistor attached
to D+ during full-speed operation.
O
USB I/O USB full-speed output buffer (D+). RSDP also functions as a
current sink for termination during high-speed operation.
I/O
USB I/O USB high-speed I/O buffer (D+).
I/O
USB I/O USB high-speed I/O buffer (D-).
O
USB I/O USB full-speed output buffer (D-). RSDM also functions as a
current sink for termination during high-speed operation.
I
5V-tolerant input Active HIGH. ASIC fabrication and manufacturing test mode select.
buffer
These pins must be tied to GND during normal operation.
I
OSC input 30-MHz crystal input.
(2.5V-tolerant)
O
OSC output 30-MHz crystal output.
I
5V-tolerant Active LOW. Media eject or remote wakeup requested. Tie to +3.3V
Schmitt input if functionality is not used.
I
5V-tolerant Active HIGH. USB interrupt request. Tie to GND if functionality is not
Schmitt input used.
I
5V-tolerant Configurable polarity. Device Presence Detect. This pin must not
Schmitt input be allowed to float if functionality is not utilized.
I
5V-tolerant Active HIGH. ATA interface enable.
Schmitt input ‘1’ = normal ATA operation
‘0’ = High-Z ATA interface pins and ATA interface logic halted
I/O
3.3V drive, General purpose I/O pins. The GPIO pins must be tied to GND if
5V-tolerant, functionality is not utilized. If the hs_indicator config bit is set, the
6-mA I_OL, GPIO2_nHS pin will reflect the operating speed of the device.
Schmitt input ‘1’ = full-speed operation
‘0’ = high-speed operation
I
5V tolerant Active HIGH. ASIC test pin. This pin must be tied to GND during
input buffer normal operation.
O
high-Z driver, Active HIGH. USB suspend indicator.
5V-tolerant, ‘0’ = Chip active. VBUS power up to 100 mA granted.
6-mA I_OL
‘High-Z’ = Chip suspend. VBUS system current limited to USB
suspend mode value.
I
5V-tolerant Active LOW. Asynchronous chip reset.
Schmitt input
O
3.3V drive, Active LOW. ATA reset signal.
5V-tolerant,
6-mA I_OL
I
3.3V input Active HIGH. ASIC test pins. These pins must be tied to GND during
normal operation.
I/O
3.3V drive, ATA data signals.
5V-tolerant,
6-mA I_OL,
Schmitt input
I
5V tolerant ATA control signal.
Schmitt input
O
3.3V drive, ATA control signal.
5V-tolerant,
6-mA I_OL
Document 38-08030 Rev. *H
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