USB2660 Standard Microsystems Corp., USB2660 Datasheet - Page 53

• 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
8.4.5.11
8.4.5.12
8.4.6
8.4.6.1
8.4.6.2
8.4.7
FET
BYTE
0
1
2
3
47:0
BIT
3:0
SD2_PWR_HB
SD2_PWR_LB
FET Lo Byte
FET Hi Byte
14Eh-17Bh: Not Applicable
17Ch -17Fh: Non-Volatile Storage Signature for Extended Configuration
I
The I
Philips Semiconductor Standard I
I
the Standard-mode I
electrical compatibility.
Note: Extensions to the I
Implementation Characteristics
The device will only access an EEPROM using the sequential read protocol.
Pull-Up Resistor
The circuit board designer is required to place external pull-up resistors (10 kΩ recommended) on the
SPI_DO / GPIO5 / SDA / SPI_SPD_SEL and SPI_CLK / GPIO4 / SCL lines (per SMBus 1.0
Specification and EEPROM manufacturer guidelines) to VDD33 in order to assure proper operation.
In-Circuit EEPROM Programming
The EEPROM can be programmed via automatic test equipment (ATE). Pulling nRESET low tri-states
the device’s EEPROM interface and allows an external source to program the EEPROM.
2
2
NVSTORE_SIG2
C EEPROM interface is designed to attach to a single “dedicated” I
C EEPROM
TYPE
Not Applicable
2
C EEPROM interface implements a subset of the I
NAME
NAME
generates the serial clock SCL, controls the bus access (determines which device acts as the
transmitter and which device acts as the receiver), and generates the START and STOP
conditions.
BITS
3:0
7:4
3:0
7:4
2
C Specification (100 kbps transfer rate and 7-bit addressing) for protocol and
Not applicable.
This signature is used to verify the validity of the data in the upper 256 bytes
if a 512 byte EEPROM is used, otherwise this bank is a read-only configuration
area. The signature must be set to 'ecf1'.
2
C Specification are not supported. The device acts as the master and
Low Nibble
High Nibble
Low Nibble
High Nibble
BIT TYPE
2
C-Bus Specification for details on I
DATASHEET
53
0000b Disabled
0001b External FET enabled
1000b Internal FET with 100 mA power limit
1010b Internal FET with 200 mA power limit
0000b Disabled
0000b Disabled
0000b Disabled
DESCRIPTION
DESCRIPTION
2
C Master Specification (Please refer to the
DESCRIPTION
2
2
C EEPROM, and it conforms to
C bus protocols). The device’s
Revision 1.0 (06-09-09)