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ST72E121 Datasheet(PDF) 20 Page - STMicroelectronics

Part # ST72E121
Description  8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS
PDF  92 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72E121 Datasheet(HTML) 20 Page - STMicroelectronics

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ST72E121 ST72T121
Table 5. Interrupt Mapping
Source
Block
Description
Register
Label
Flag
Exit
from
HALT
Vector
Address
Priority
Order
RESET
Reset
N/A
N/A
yes
FFFEh-FFFFh
TRAP
Software
N/A
N/A
no
FFFCh-FFFDh
NOT USED
FFFAh-FFFB h
NOT USED
FFF8h-FFF9h
EI0
Ext. Interrupt (Ports PA0:PA3)
N/A
N/A
yes
FFF6h-FFF7h
EI1
Ext. Interrupt (Ports PF0:PF2)
N/A
N/A
FFF4h-FFF5h
EI2
Ext. Interrupt (Ports PB0:PB3)
N/A
N/A
FFF2h-FFF3h
EI3
Ext. Interrupt (Ports PB4:PB7)
N/A
N/A
FFF0h-FFF1h
NOT USED
FFEEh-FFEFh
SPI
Transfer Complete
SPISR
SPIF
no
FFECh-FFEDh
Mode Fault
MODF
TIMER A
Input Capture 1
TASR
ICF1_A
FFEAh-FFEBh
Output Compare 1
OCF1_A
Input Capture 2
ICF2_A
Output Compare 2
OCF2_A
Timer Overflow
TOF_A
TIMER B
Input Capture 1
TBSR
ICF1_B
FFE8h-FFE9h
Output Compare 1
OCF1_B
Input Capture 2
ICF2_B
Output Compare 2
OCF2_B
Timer Overflow
TOF_B
SCI
Transmit Buffer Empty
SCISR
TDRE
FFE6h-FFE7h
Transmit Complete
TC
Receive Buffer Full
RDRF
Idle Line Detect
IDLE
Overrun
OR
NOT USED
FFE4h-FFE5h
NOT USED
FFE2h-FFE3h
NOT USED
FFE0h-FFE1h
Highest
Priority
Priority
Lowest
20



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