Texas Instruments BUF08832, Руководство пользователя, Страница: 7 / 32

External
Power
USB
from
Computer
Reset Button
and
Power On Reset
V
5V
USB
Adjustable
Regulator
3.3V Regulator
V Microcontroller
3.3V
S
8Kx8 Byte
EEPROM
TUSB3210
8052 C
with USB Interface
and UART
m
V
(2.7V to 5.5V)
CC
V
(2.7V to 5.5V)
DUT
Power
Switching
Buffers and
Latches
Switched Power
I C
SPI
Control Bits
Measure Bits
2
USB Dig Platform
EVM
www.ti.com
BUF08832EVM Hardware Setup
2.3 Theory of Operation for USB_DIG_Platform
Figure 4 shows the block diagram for the USB DIG Platform. This platform is a general-purpose data
acquisition system that is used on several different Texas Instruments evaluation modules. The details of
its operation are included in a separate document,
SBOU058 (available for download at www.ti.com ). The
block diagram shown in Figure 4 gives a brief overview of the platform. The primary control device on the
USB DIG Platform is the TUSB3210 .
Figure 4. USB_DIG_Platform Theory of Operation
7 SBOU081 – November 2009 BUF08832EVM User Guide and Software Tutorial
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