UMFT220XA-01 FTDI, UMFT220XA-01 Datasheet - Page 6

• Manufacturer Part Number: UMFT220XA-01
• Description: Interface Development Tools USB to SPI/FT1248 Dev Mod for FT220X
• Manufacturer: FTDI
• Type: USB to SPIr

Specifications of UMFT220XA-01

• Rohs: yes
• Product: Development Modules
• Tool Is For Evaluation Of: FT220XQ
• Interface Type: SPI
• Operating Supply Voltage: 3.3 V
• Dimensions: 30.1 mm x 12.2 mm x 2.2 mm
• Tradename: X-Chip

CBUS Signal
4.3
The following options can be configured on the CBUS I/O pins. These options are all configured in the
internal MTP ROM using the utility software FT_PROG, which can be downloaded from the
www.ftdichip.com. The default configuration is described in
BCD_Charger#
Table 4.2 – CBUS Signal Options
**When in USB suspend mode the outputs clocks are also suspended.
Keep_Awake#
BitBang_WR#
BCD_Charger
BitBang_RD#
VBUS_Sense
Time_Stamp
TX&RXLED#
CLK24MHz
CLK12MHz
CLK6MHz
DRIVE_1
DRIVE_0
PWREN#
Option
TXLED#
RXLED#
SLEEP#
Tristate
GPIO
CBUS Signal Options
Available On CBUS
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
CBUS3
Pin
IO Pad is tristated
Output a constant 1
Output a constant 0
Output is low after the device has been configured by USB, then high
during USB suspend mode. This output can be used to control power to
external logic P-Channel logic level MOSFET switch.
NOTE: This function is driven by an open-drain to ground with no
internal pull-up, this is specially designed to aid battery charging
applications. UMFT220XA connects an on-board 47K pull-up to all CBUS
and DBUS pins.
Transmit data LED drive – open drain pulses low when transmitting
data via USB.
Receive data LED drive – open drain pulses low when receiving data via
USB.
LED drive – open drain pulses low when transmitting or receiving data
via USB.
Goes low during USB suspend mode. Typically used to power down an
external logic to RS232 level converter IC in USB to RS232 converter
designs. Cancel SLEEP# option for when connected to a dedicated
charger port, this can be selected when configuring the MTP ROM.
When this option is enabled SLEEP# is driven high when FT220X is
connected to a Dedicated Charger Port.
24 MHz Clock output.**
12 MHz Clock output.**
6 MHz Clock output.**
CBUS bit bang mode option. Allows up to 4 of the CBUS pins to be used
as general purpose I/O. Configured individually for CBUS0, CBUS1,
CBUS2 and CBUS3 in the internal MTP ROM. A separate application
note, AN232R-01, available from
describes in more detail how to use CBUS bit bang mode.
Battery Charge Detect indicates when the device is connected to a
dedicated battery charger host. Active high output. NOTE: Requires a
10K pull-down to remove power up toggling.
Active low BCD Charger, driven by an open drain to ground with no
internal pull-up (4.7K on board pull-up present).
Synchronous and asynchronous bit bang mode WR# strobe output.
Synchronous and asynchronous bit bang mode RD# strobe output.
Input to detect when VBUS is present.
Toggle signal which changes state each time a USB SOF is received
Active Low input, prevents the chip from going into suspend.
Copyright © 2012 Future Technology Devices International Limited
Document Reference No.: FT_000517
Section
9.
Description
FTDI website
Clearance No.: FTDI#
(www.ftdichip.com)
6
UMFT220XA
Version 1.1
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