USB2660 Standard Microsystems Corp., USB2660 Datasheet - Page 16

• Manufacturer Part Number: USB2660
• Description: Ultra Fast Usb 2.0 Hub And Multi-format Flash Media Controller With Dual Sd Interfaces
• Manufacturer: Standard Microsystems Corp.

Revision 1.0 (06-09-09)
SD2_D[7:0] /
GPIO[25:18]
SD2_CMD /
SD2_CLK /
SD2_nCD /
SD2_WP /
SYMBOL
SD1_WP
GPIO6 /
GPIO26
GPIO27
GPIO16
GPIO17
64-PIN
QFN
21
11
12
16
18
19
20
10
13
17
45
9
8
Table 6.1 USB2660/USB2660i Pin Descriptions (continued)
(Table
BUFFER
I/O8PU
I/O8PU
TYPE
I/O6
I/O8
I/O6
I/O6
I/O6
I/O8
I/O6
I/O8
I/O6
O8
SECOND SECURE DIGITAL INTERFACE
6.2)
Ultra Fast USB 2.0 Hub and Multi-Format Flash Media Controller with Dual SD Interfaces
This general purpose pin may be used either as input, edge sensitive
These general purpose pin may be used either as input, edge sensitive
This general purpose pin may be used either as input, edge sensitive
SD2 Command GPIO
This general purpose pin may be used either as input, edge sensitive
This general purpose pin may be used either as input, edge sensitive
This general purpose pin may be used either as input, edge sensitive
DESCRIPTION
interrupt input, or output. Custom firmware is required to activate this
function.
Secure Digital Write Protected GPIO
This is a GPIO designated by the default firmware as the Secure
Digital card mechanical write protect detect pin.
SD2 Data 7-0
These are the bi-directional data signals SD2_D0 - SD2_D7 and have
weak pull-up resistors.
interrupt input, or output. Custom firmware is required to activate this
function.
SD2 Clock GPIO
This is an output clock signal designated by the default firmware to the
SD2/MMC device.
interrupt input, or output. Custom firmware is required to activate this
function.
This is a bi-directional signal designated by the default firmware that
connects to the CMD signal of the SD2/MMC device. The bi-directional
signal has a weak internal pull-up resistor.
interrupt input, or output. Custom firmware is required to activate this
function.
SD2 Card Detect GPIO
This is a GPIO designated by the default firmware as the second
Secure Digital card detection pin and has an internal pull-up.
interrupt input, or output. Custom firmware is required to activate this
function.
SD2 Write Protected GPIO
This is a GPIO designated by the default firmware as the second
Secure Digital card interface mechanical write detect pin.
interrupt input, or output. Custom firmware is required to activate this
function.
DATASHEET
16
SMSC USB2660/USB2660i
Datasheet