Datasheet

Maxim Integrated │ 2
www.maximintegrated.com
USB2PMB1# Adapter Board
Evaluates: Munich (USB2PMB1#)
Detailed Description of Hardware
This Munich board uses the FT2232HL (IC1), a USB
2.0 high-speed (480Mbps)-to-UART/FIFO IC, to process
commands sent by a program running on the PC. Each
particular EV kit has its own custom software specific
to that kit. The operation of this board is USB-to-dual-
channel SPI engine.
The V
CCIO
(3.3V) voltage supply is generated by the
27µA low quiescent current, 1.2A efficient PWM step-
down DC-DC converter, MAX1556ETB (IC2). The 5V sup-
ply voltage input for this IC is provided by the Mini-USB
supply terminal available from the laptop. The V
CCIO
pin
provides power to the FDTI chip’s V
REGIN
pin and its
internal oscillator though an LC filter, 4K MICROWIRE
EEPROM (93LC66BT) (IC3). The USB-to-SPI engine
is powered by 3.3V (V
CCIO
) at the V
REGIN
pin and the
core voltage of 1.8V for the IC is generated at V
REGOUT
.
This V
CORE
is used within the FTDI IC itself for its inter-
nal logic processes. There is an external 12MHz crystal
across OSCI and OSCO pins of IC1.
Pmod Supply Voltage
The Munich is also designed to supply power to exter-
nal boards (Cupertino, Campbell, Fresno, and Corona)
through the connector X2. It is intended to provide power
supply to the interface circuitry present in the connected
driver boards.
Pmod SPI Connector Output Pin and
Connector Input in Cupertino, Campbell,
Fresno, Corona Driver Boards
Figure 3 shows the pin configuration for the SPI-
compatible connector at the USB2PMB1# board.
Figure 4 depicts the pin configuration of connector found
in Cupertino, Campbell, Fresno, and Corona. The con-
nector type is female on the USB2PMB1# board and male
type on the drivers.
Quick Start
Required Equipment
● PC with Windows OS (Windows XP, Windows Vista,
Windows 7, or Windows8) with two USB ports
● Munich (USB2PMB1#) Board
● A-to-Mini-B USB cable
● USB2PMB1# custom software
● Any SPI interface device for communication like
Cupertino (MAXREFDES5#) board
Figure 2. Munich Subsystem Block Diagram
Figure 3. X2: Pmod SPI Connector Pin Configuration
Figure 4. SPI Connector Inputs Found in Cupertino, Campbell,
Fresno, and Corona
Figure 2
USB Pmod™
FTD12232H
REGULATED POWER
MAX1556 3.3V
Figure 3
23.3V 3.3V
GND GND
SPIA_SCLK SPIB_SCLK
SPIA_MISO SPIB_MISO
SPIA_MOSI SPIB_MOSI
SPIA_CS SPIB_CS
SPI COMPATIBLE CONNECTOR : X2
X2
1
3 4
5 6
7 8
9 10
11 12
Figure 4
7 CS
MOSI
MISO
SSTRB SCLK
GND GND
3.3V 3.3V
SPI
J1
1
8 2
9 3
10 4
11 5
12 6