USB2660 Standard Microsystems Corp., USB2660 Datasheet - Page 17

• 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.

Ultra Fast USB 2.0 Hub and Multi-Format Flash Media Controller with Dual SD Interfaces
Datasheet
SMSC USB2660/USB2660i
MS_SCLK
MS_D[7:0]
xD_D[7:0]
SYMBOL
GPIO12 /
xD_nB/R
MS_INS
xD_ALE
MS_BS
64-PIN
QFN
29
39
21
28
27
25
26
40
38
31
32
38
40
41
21
25
26
27
28
31
36
Table 6.1 USB2660/USB2660i Pin Descriptions (continued)
(Table
BUFFER
I/O8PD
I/O8PD
O8PD
TYPE
I/O6
IPU
IPU
O8
O8
6.2)
xD-PICTURE CARD INTERFACE
MEMORY STICK INTERFACE
This general purpose pin may be used either as input, edge sensitive
xD-Picture Card Busy or Data Ready
DESCRIPTION
Memory Stick Bus State
This pin is connected to the bus state pin of the MS device. It is used
to control the Bus States 0, 1, 2, and 3 (BS0, BS1, and BS3) of the
MS device.
interrupt input, or output. Custom firmware is required to activate this
function.
Memory Stick Card Insertion GPIO
This is a GPIO designated by the default firmware as the Memory Stick
card detection pin and has a weak internal pull-up resistor.
Memory Stick System Clock
This pin is an output clock signal to the MS device.
Memory Stick System Data In/Out
These pins are the bi-directional data signals for the MS device. In
serial mode, the most significant bit (MSB) of each byte is transmitted
first by either MSC or MS device on MS_D0.
MS_D0, MS_D2, and MS_D3 have weak pull-down resistors. MS_D1
has a pull-down resistor if in parallel mode, otherwise it is disabled. In
4- or 8-bit parallel modes, all MS_D7 - MS_D0 signals have weak pull-
down resistors.
xD-Picture Card Data 7-0
These pins are the bi-directional data signals xD_D7 - xD_D0 and have
weak internal pull-down resistors.
xD-Picture Card Address Strobe
This pin is an active high Address Latch Enable (ALE) signal for the
xD device. This pin has a weak pull-down resistor that is permanently
enabled.
This pin is connected to the BSY/RDY pin of the xD-Picture Card
device.
When using the internal FET, this pin has an internal weak pull-up
resistor that is tied to the output of the internal power FET.
If an external FET is used (the internal FET is disabled), then the
internal pull-up is not available (an external pull-up is required).
DATASHEET
17
Revision 1.0 (06-09-09)