參數(shù)資料
型號： CY7C68301C
廠商： Cypress Semiconductor Corp.
英文描述： EZ-USB AT2LP USB 2.0 to ATA/ATAPI Bridge(EZ-USB AT2LP USB 2.0到ATA/ATAPI橋接器)
中文描述： 的EZ - USB AT2LP產(chǎn)品的USB 2.0的ATA / ATAPI橋（的EZ - USB AT2LP產(chǎn)品的USB 2.0到ATA / ATAPI接口橋接器）
文件頁數(shù)： 12/42頁
文件大小： 761K
代理商： CY7C68301C
CY7C68300C/CY7C68301C
CY7C68320C/CY7C68321C
Document 001-05809 Rev. *A
Page 12 of 42
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 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
gives the bitmap for the data returned on the interrupt
pipe and
Figure 8
depicts the latching algorithm incorporated
by the AT2LP.
The SYSIRQ pin must be pulled LOW if HID functionality is
used. Refer to
“HID Functions for Button Controls” on page 15
for more details on HID functionality.
Table 3. Interrupt Data Bitmap
EP1 Data Byte 1
4
EP1 Data Byte 0
4
7
6
5
3
2
1
0
7
6
5
3
2
1
0
R
R
R
R
R
R
U
V
R
R
G
G
G
G
G
G
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY7C68301C-56LFXC 功能描述:USB 接口集成電路 USB Hi Spd Peripherals RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
CY7C68301C-56LTXC 功能描述:USB 接口集成電路 AT2LP HS-USB RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
CY7C68301C-56PVXC 功能描述:USB 接口集成電路 USB Hi Spd Peripherals RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
CY7C68310-80AC 制造商:Cypress Semiconductor 功能描述:
CY7C68310-80AXC 制造商:Rochester Electronics LLC 功能描述: 制造商:Cypress Semiconductor 功能描述:
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