ST72651AR6 STMicroelectronics, ST72651AR6 Datasheet - Page 65

• Manufacturer Part Number: ST72651AR6
• Description: LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI
• Manufacturer: STMicroelectronics

Specifications of ST72651AR6

• Dual Supply Management: analog voltage detector on the USB power line to enable smart power switching from USB power to battery (on E suffix devices).
• Programmable Internal Voltage Regulator For Memory Cards (2.8v To 3.5v) Supplying: Flash Card I/O lines (voltage shifting)
• 5 Usb Endpoints: 1 control endpoint
• Dtc (data Transfer Coprocessor): Universal Serial/Parallel communications interface, with software plug-ins for current and future protocol standards

USB INTERFACE (Cont’d)
Figure 40. Overview of USB, DTC and ST7 Interconnections
0
BUFCSR Register (19h)
0
0
0
NUM
BUF
STAT
B1
STAT
B0
CLR
Doc ID 7215 Rev 4
BUFFER ACCESS
COPROCESSOR
TRANSFER
ARBITRATION
BUFFER
MANAGER
USB DATA
DTC I/Os
(EXTERNAL
DEVICES)
DATA
(DTC)
USB
SIE
1A4Fh
1850h
1550h
1650h
BUFFER
DATA TRANSFER
512-byte RAM
512-byte RAM
Parameters
USB EP0
USB EP1
USB EP2
Buffer
Buffer
ST72651AR6
(1280 bytes)
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