VNC2-48Q1B-REEL FTDI, VNC2-48Q1B-REEL Datasheet - Page 56

• 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 25 SPI Master Signal Names
The main purpose of the SPI Master block is to transfer data between an external SPI interface and the
VNC2. It does this under the control of the CPU and DMA engine via the on chip I/O bus.
An SPI master interface transfer can only be initiated by the SPI Master and begins with the slave select
signal being asserted. This is followed by a data byte being clocked out with the master supplying SCLK.
The master always supplies the first byte, which is called a command byte. After this the desired number
of data bytes are transferred before the transaction is terminated by the master de-asserting slave
select.
The SPI Master will transmit on MOSI as well as receive on MISO during every data stage. At the end of
each byte spi_tx_done and spi_rx_full_int are set. Figure 6-21 Typical SPI Master Timing and
Table 26 SPI Master Timing show an example of this.
Available
Package
22, 26,
31, 41,
45, 49,
55, 59,
14, 18,
23, 27,
32, 42,
46, 50,
56, 60,
11, 15,
19, 24,
28, 39,
43, 47,
51, 57,
64 Pin
pins
63
64
61
Available
Package
22, 33,
37, 43,
14, 19,
23, 34,
38, 44,
11, 15,
20, 31,
35, 41,
48 Pin
pins
47
48
45
Copyright © 2010 Future Technology Devices International Limited
Available
Package
15, 26,
32 Pin
11, 23
pins
VINCULUM-II EMBEDDED DUAL USB HOST CONTROLLER IC Datasheet
31
32
29
spi_m_ss_0#
spi_m_ss_1#
spi_m_miso
Name
Output
Output
Type
Active low slave select 0 from master to
Active low slave select 1 from master to
Synchronous data from slave to master
Document No.: FT_000138
Clearance No.: FTDI#
Description
slave 0
slave 1
Version -
143
1.2
56