CY7C68003-24LQXI(2010) Ver la hoja de datos (PDF) - Cypress Semiconductor
Número de pieza
componentes Descripción
Fabricante
CY7C68003-24LQXI Datasheet PDF : 27 Pages
| |||
CY7C68003
The operation and configuration modes are described in the
sections Operation Modes on page 5 and Configuration Mode on
page 16 respectively. The ULPI low power mode and Sleep
mode are described in the following sections.
ULPI Low Power Mode
In this mode, the link optionally places the TX2UL in low power
mode when the USB is suspended. TX2UL powers down all the
circuitry except for the interface pins and full speed receiver. To
enter low power mode, the link must set SuspendM in the
Function Control register to 0b. The TX2UL clock is stopped for
a minimum of five cycles after TX2UL accepts the register write.
To exit low power mode, the link signals TX2UL to exit the mode
by asynchronously asserting a signal, STP. The TX2UL wakes
up its internal circuitry and when it meets the ULPI timing require-
ments, it deasserts DIR. The SuspendM register is set to 1b.
Sleep Mode
Sleep mode is entered by asserting RESET_N during the Normal
Operation Mode. When RESET_N is driven low for tSTATE (see
Table 21 on page 21 for tSTATE requirement) while CS_N is low,
TX2UL enters Sleep Mode. VCC must remain supplied (ON)
during the sleep mode. This mode powers down all internal
circuitry except the RESET_N pin and the chip_config register.
The ULPI interface bus is tristated.
During the Sleep Mode ensure that:
■ The ULPI interface I/Os are either floating or driven high by the
link
■ DP and DM are either floating or pull to 0V
■ Deassert RESET_N to exit the Sleep Mode.
VID and PID
The VID and PID are hard coded into Product ID and Vendor ID registers (read only) as shown in Table 6.
Table 6. Immediate Register Values for VID and PID
Field Name
Vendor ID (VID) Low
Vendor ID (VID) High
Product ID (PID) Low
Product ID (PID) High
Address (6 bits)
Size (bit)
Rd
Wr
Set
Clr
8
00h
-
-
-
8
01h
-
-
-
8
02h
-
-
-
8
03h
-
-
-
Value
B4h
04h
03h
68h
Document Number: 001-15775 Rev. *I
Page 6 of 27
[+] Feedback
Share Link: 