ST72T311 ST Microelectronics, ST72T311 Datasheet - Page 59

• Manufacturer Part Number: ST72T311
• Description: 8-BIT MCU WITH 8 TO 16K OTP/EPROM
• Manufacturer: ST Microelectronics

SERIAL COMMUNICATIONS INTERFACE (Cont’d)
4.4.5 Low Power Modes
4.4.6 Interrupts
The SCI interrupt events are connected to the
same interrupt vector (see Interrupts chapter).
Mode
WAIT
HALT
Transmit Data Register Empty
Transmission Complete
Received Data Ready to be Read
Overrrun Error Detected
Idle Line Detected
In Halt mode, the SCI stops transmitting/receiving until Halt mode is exited.
Description
No effect on SCI.
SCI interrupts cause the device to exit from Wait mode.
SCI registers are frozen.
Interrupt Event
These events generate an interrupt if the corre-
sponding Enable Control Bit is set and the I-bit in
the CC register is reset (RIM instruction).
Event
RDRF
TDRE
Flag
IDLE
OR
TC
Control
Enable
ST72E311 ST72T311
TCIE
RIE
ILIE
Bit
TIE
from
Wait
Exit
Yes
Yes
Yes
Yes
Yes
59
from
Halt
Exit
59/100
No
No
No
No
No