CY7C68300C-56LTXC Cypress Semiconductor Corp, CY7C68300C-56LTXC Datasheet - Page 13
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CY7C68300C-56LTXC
Manufacturer Part Number
CY7C68300C-56LTXC
Description
IC USB 2.0 BRIDGE AT2LP 56VQFN
Manufacturer
Cypress Semiconductor Corp
Series
CY7Cr
Type
USB to ATA/ATAPI Bridger
Datasheet
1.CY7C68300C-56PVXC.pdf
(42 pages)
Specifications of CY7C68300C-56LTXC
Package / Case
56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
Controller Type
USB 2.0 Controller
Interface
I²C
Voltage - Supply
3.15 V ~ 3.45 V
Current - Supply
50mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Mounting Style
SMD/SMT
Operating Temperature Range
0 C to + 70 C
Supply Current
50 mA
Operating Supply Voltage
3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
CY4615B - KIT USB TO ATA REFERENCE DESIGN
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C68300C-56LTXC
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
SYSIRQ
The SYSIRQ pin provides a way for systems to request service
from host software by using the USB Interrupt pipe on endpoint
1 (EP1). If the AT2LP has no pending interrupt data to return,
USB interrupt pipe data requests are NAKed. If pending data is
available, the AT2LP returns 16 bits of data. This data indicates
whether AT2LP is operating in high speed or full speed, whether
the AT2LP is reporting self-powered or bus-powered operation,
and the states of any GPIO pins that are configured as inputs.
GPIO pins can be individually set as inputs or outputs, with byte
Table 3. Interrupt Data Bitmap
Document 001-05809 Rev. *B
7
6
5
EP1 Data Byte 1
NAK Request
4
No
3
Return Interrupt Data
Set Int_Data = 0
USB Interrupt
Int_Data = 1?
Pipe Polled?
Yes
Yes
2
Figure 8. SYSIRQ Latching Algorithm
1
No
0
7
0x09 of the configuration data. The state of any GPIO pin that is
not set as an input is reported as ‘0’ in the EP1 data.
Table 3
pipe and
the AT2LP.
The SYSIRQ pin must be pulled LOW if HID functionality is used.
Refer to
details on HID functionality.
6
gives the bitmap for the data returned on the interrupt
“HID Functions for Button Controls”
Figure 8
Yes
5
No
CY7C68300C, CY7C68301C
CY7C68320C, CY7C68321C
depicts the latching algorithm incorporated by
EP1 Data Byte 0
Latch State of IO Pins
4
Set Int_Data = 1
SYSIRQ=1?
Int_Data = 0
SYSIRQ=0?
Yes
and
3
2
on page 15 for more
No
1
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