STV-676-E01 STMicroelectronics, STV-676-E01 Datasheet - Page 9

• Manufacturer Part Number: STV-676-E01
• Description: KIT EVAL FOR STV0676 DSP
• Manufacturer: STMicroelectronics

Specifications of STV-676-E01

• Sensor Type: CMOS Imaging, Color (RGB)
• Sensing Range: VGA
• Interface: I²C, Digiport
• Sensitivity: 30 fps
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: STV0676, VV6411, VV6501
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-3888; STV-676-E01

STV0676
2.2
2.3
Benchmark testing of the STV0676 indicates that 30fps CIF video (compressed) can be
accommodated in 50% of USB bandwidth.
Mode selection
All USB devices report a VID, PID and power consumption as part of a standard device
descriptor. The VID and PID for STV0676 can be configured by the state of the digiport bits
or by using an external EEPROM. The mode selection is made using the two MODESEL
pins as described in
Table 2.
Selecting VID and PID via the digiport
Tables 4~7 demonstrate how the VID/PID information is defined via the digiport.
The current reference design for the STV0676-chipset has digiport[7:0] connected to VSS,
thus the VID and PID are 16’h0553 and 16’h0140 respectively.
The digiport also controls the device current consumption that is reported to the host at
device enumeration.
Table 3.
Table 4.
MODESEL[1]
0
1
0
1
Mode selection
Basic digiport configuration
Digiport LS nibble configuration
Digiport bit slice
digiport[3:0]
4’b0000
4’b0001
4’b0010
4’b0011
4’b0100
[3:0]
[5:4]
[7:6]
Table 2
MODESEL[0]
0
0
1
1
below.
USB Mode. External EEPROM fitted, therefore PID, VID
and power consumption read from this source.
See
Slave I
USB mode. Default. No external EEPROM fitted, the PID
VID and power consumption data determined by
digiport[7:0]. See
Reserved
Section 2.4
configures the LS nibble of the PID
master VID/PID select
power setting
2
C mode.
PID LS nibble
Section 2.3
Mode of operation
4’b0000
4’b0001
4’b0010
4’b0011
4’b0100
Function
External interfaces
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