st72f321r STMicroelectronics, st72f321r Datasheet - Page 108

• Manufacturer Part Number: st72f321r
• Description: 64/44-pin 8-bit Mcu With 32 To 60k Flash/rom, Adc, Five Timers, Spi, Sci, I2c Interface
• Manufacturer: STMicroelectronics

ST72321
SERIAL COMMUNICATIONS INTERFACE (Cont’d)
10.6.5 Low Power Modes
10.6.6 Interrupts
The SCI interrupt events are connected to the
same interrupt vector.
These events generate an interrupt if the corre-
sponding Enable Control Bit is set and the inter-
108/189
Mode
WAIT
HALT
In Halt mode, the SCI stops transmit-
ting/receiving until Halt mode is exit-
ed.
Description
No effect on SCI.
SCI interrupts cause the device to exit
from Wait mode.
SCI registers are frozen.
rupt mask in the CC register is reset (RIM instruc-
tion).
Transmit Data Register
Empty
Transmission Com-
plete
Received Data Ready
to be Read
Overrun Error Detected
Idle Line Detected
Parity Error
Interrupt Event
Event
TDRE
RDRF
Flag
IDLE
OR
TC
PE
Control
Enable
TCIE
ILIE
Bit
RIE
PIE
TIE
from
Wait
Exit
Yes
Yes
Yes
Yes
Yes
Yes
from
Halt
Exit
No
No
No
No
No
No