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ST7232A Fiches technique(PDF) 96 Page - STMicroelectronics

No de pièce ST7232A
Description  8-BIT MICROCONTROLLER WITH 8K FLASH/ROM, ADC, 4 TIMERS, SPI, SCI INTERFACE
PDF  157 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7232A Fiches technique(HTML) 96 Page - STMicroelectronics

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SERIAL COMMUNICATIONS INTERFACE (Cont’d)
10.5.5 Low Power Modes
10.5.6 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-
rupt mask in the CC register is reset (RIM instruc-
tion).
Mode
Description
WAIT
No effect on SCI.
SCI interrupts cause the device to exit
from Wait mode.
HALT
SCI registers are frozen.
In Halt mode, the SCI stops transmit-
ting/receiving until Halt mode is exit-
ed.
Interrupt Event
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Halt
Transmit Data Register
Empty
TDRE
TIE
Yes
No
Transmission Com-
plete
TC
TCIE
Yes
No
Received Data Ready
to be Read
RDRF
RIE
Yes
No
Overrun Error Detected
OR
Yes
No
Idle Line Detected
IDLE
ILIE
Yes
No
Parity Error
PE
PIE
Yes
No
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