Manualshelf

Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsInterface ICsInterface IC - customised QFN 48
11121314151617181920
High-Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
Revision 1.3 (03-13-13) 14 SMSC USB4640/USB4640i
DATASHEET
XTAL2 44 OCLKx 24 MHz Crystal Output
The other terminal of the crystal, or it is left open when an external
clock source is used to drive XTAL1(CLKIN).
SECURE DIGITAL INTERFACE
SD_D[7:0] 19
20
23
30
32
33
17
18
I/O8PU Secure Digital Data 7-0
Bi-directional data signals SD_D0 - SD_D7 with weak pull-up
resistors.
SD_CLK 21 O8 Secure Digital Clock
The output clock signal to the SD/MMC device.
SD_CMD 24 I/O8PU Secure Digital Command
Bi-directional signal that connects to the CMD signal of the SD/MMC
device. The bi-directional signal has a weak internal pull-up resistor.
GPIO15/ 14 I/O6 General Purpose IO 15
Can be used either as an input; edge sensitive interrupt input; or
output. Custom firmware is required to activate this function.
SD_nCD I/O8PU Secure Digital Card Detect GPIO
Designated by the default firmware as the Secure Digital card
detection pin and has an internal pull-up.
GPIO6/ 13 I/O6 General Purpose IO 6
Can be used either as input; edge sensitive interrupt input; or output.
Custom firmware is required to activate this function.
SD_WP I/O8 Secure Digital Write Protected GPIO
Designated by the default firmware as the Secure Digital card
interface mechanical write protect detect pin.
MEMORY STICK INTERFACE
MS_BS 21 O8 Memory Stick Bus State
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.
GPIO12/ 31 I/O8 General Purpose IO 12
Can be used either as input; edge sensitive interrupt input; or output.
Custom firmware is required to activate this function.
MS_INS IPU Memory Stick Card Insertion GPIO
Designated by the default software as the Memory Stick card
detection pin and has a weak internal pull-up resistor.
MS_SCLK 13 O8 Memory Stick System Clock
Output clock signal to the MS device.
Table 3.2 USB4640/USB4640i Pin Descriptions (continued)
SYMBOL
48-PIN
QFN
BUFFER
TYPE DESCRIPTION