ST72651AR6 STMicroelectronics, ST72651AR6 Datasheet - Page 109

• 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

I²C SINGLE MASTER BUS INTERFACE (Cont’d)
11.7.5 Low Power Modes
11.7.6 Interrupts
Figure 65. Event Flags and Interrupt Generation
Note: The I
the same interrupt vector (see Interrupts chapter).
They generate an interrupt if the corresponding
Enable Control Bit is set and the I-bits in the CC
register are reset (RIM instruction).
WAIT
HALT
End of Byte Transfer Event
Start Bit Generation Event (Master mode)
Acknowledge Failure Event
Mode
*
EVF can also be set by EV2 or an error from the SR2 register.
BTF
*
SB
No effect on I
I
I
In HALT mode, the I
resumes operation when the MCU is woken up by an interrupt with “exit from HALT mode” capability.
AF
2
2
2
C interrupts cause the device to exit from WAIT mode.
C registers are frozen.
*
C interrupt events are connected to
2
C interface.
Interrupt Event
2
C interface is inactive and does not acknowledge data on the bus. The I
Doc ID 7215 Rev 4
ITE
Description
Event
Flag
BTF
SB
AF
Control
Enable
Bit
ITE
INTERRUPT
EVF
ST72651AR6
from
Wait
Exit
Yes
Yes
Yes
2
C interface
109/161
from
Halt
Exit
No
No
No