VNC1L-1A Datasheet, PDF (11/32 Pages) Future Technology Devices International Ltd. – Vinculum VNC1L Embedded USB Host Controller IC

Document Reference No.: FT_000030
Vinculum VNC1L Embedded USB Host Controller IC Datasheet Version 2.02
Clearance No.: FTDI# 50
Pin No.
Name
Type Description
UART
Interface
Combined Interface Mode
Parallel FIFO
Interface
SPI Slave
Interface
I/O Port
5V safe bidirectional
43
ACBUS2 I/O
data/control bus, AC bit 2
RD#
PortAC2
5V safe bidirectional
44
ACBUS3 I/O
data/control bus, AC bit 3
WR
PortAC3
5V safe bidirectional
45
ACBUS4 I/O
data/control bus, AC bit 4
DATAREQ# DATAREQ# PortAC4
5V safe bidirectional
data/control bus, AC bit 5,
46
ACBUS5 I/O
Interface mode selection
pin
DATAACK# DATAACK# PortAC5
5V safe bidirectional
data/control bus, AC bit 6,
47
ACBUS6 I/O
Interface mode selection
pin
PortAC6
5V safe bidirectional
data/control bus, AC bit 7.
To use a 12MHz crystal
with VNC1L fit a 47kΩ
pull-down resistor.
Alternatively, fitting a
48
ACBUS7
I/O _{47kΩ pull-up resistor on}
this pin will switch off the
internal clock multiplier,
allowing the device to be
fed with an external
48MHz clock signal into
XTIN
Table 3.4 Data and Control Signals
PortAC7
Copyright © 2009 Future Technology Devices International Limited
11