VNC2-48Q1B-REEL FTDI, VNC2-48Q1B-REEL Datasheet - Page 44

• Manufacturer Part Number: VNC2-48Q1B-REEL
• Description: USB Interface IC Vinculum-II Dual USB Host/Dev IC QFN-48
• Manufacturer: FTDI
• Type: USB Host/Device Controllerr

Specifications of VNC2-48Q1B-REEL

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current: 25 mA
• Operating Supply Voltage: 1.8 V, 3.3V
• Package / Case: QFN-48
• Description/function: USB Vinculum-II Dual Host/Dev IC QFN-48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: VINCULUM2

Table 17 Data and Control Bus Signal Mode Options - SPI Slave Interface
6.3.2 Full Duplex
In full duplex mode, the SPI slave sends data on MISO line at the same time as it receives data on MOSI.
During the command phase this data is always the slave status byte. For a write command, write data
can be streamed out of MOSI and status can be sent during each write phase from slave to master. As
long as the slave status indicates that it can receive more data, the master can continue to stream
further write bytes. Figure 6-5 is an example of this.
Figure 6-5 Full Duplex Data Master Write
When the master is performing a data read, the data and status both need to share the same pin (MISO).
In this case the master and slave will exchange command and status bytes, followed by the slave sending
its data. If the Master keeps SS# active the Slave will send a further status byte after the data followed
by another data byte. This continues until the Master indicates the end of the communications by raising
SS#. Figure 6-6 is an example of this.
Available
Package
14, 18,
23, 27,
32, 42,
46, 50,
56, 60,
64 Pin
pins
MOSI
MISO
64
SS#
Available
Package
14, 19,
23, 34,
38, 44,
48 Pin
pins
48
Copyright © 2010 Future Technology Devices International Limited
8 bit CMD
STATUS
Available
Package
15, 26,
32 Pin
pins
VINCULUM-II EMBEDDED DUAL USB HOST CONTROLLER IC Datasheet
32
spi_s0_ss#
spi_s1_ss#
Name
STATUS
W0
Input
Type
STATUS
W1
Slave chip select
Document No.: FT_000138
Clearance No.: FTDI#
Description
STATUS
W2
Version -
143
1.2
44