ST72E121J4D0 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72E121J4D0

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS

STMicroelectronics 

ST72E121 ST72T121

Table 5. Interrupt Mapping

Source

Block

RESET

TRAP

EI0

EI1

EI2

EI3

SPI

TIMER A

TIMER B

SCI

Description

Reset

Software

NOT USED

NOT USED

Ext. Interrupt (Ports PA0:PA3)

Ext. Interrupt (Ports PF0:PF2)

Ext. Interrupt (Ports PB0:PB3)

Ext. Interrupt (Ports PB4:PB7)

NOT USED

Transfer Complete

Mode Fault

Input Capture 1

Output Compare 1

Input Capture 2

Output Compare 2

Timer Overflow

Input Capture 1

Output Compare 1

Input Capture 2

Output Compare 2

Timer Overflow

Transmit Buffer Empty

Transmit Complete

Receive Buffer Full

Idle Line Detect

Overrun

NOT USED

NOT USED

NOT USED

Register

Label

N/A

N/A

Flag

N/A

N/A

N/A

N/A

N/A

N/A

SPISR

TASR

TBSR

SCISR

N/A

N/A

N/A

N/A

SPIF

MODF

ICF1_A

OCF1_A

ICF2_A

OCF2_A

TO F_A

ICF1_B

OCF1_B

ICF2_B

OCF2_B

TO F_B

TDRE

TC

RDRF

IDLE

OR

Exit

from

HALT

yes

no

yes

Vector

Address

Priority

Order

FFFEh-FFFFh

FFFCh-FFFDh

FFFAh -FFFB h

FFF8h-FFF9h

FFF6h-FFF7h

FFF4h-FFF5h

FFF2h-FFF3h

FFF0h-FFF1h

F FEEh-FFE Fh

Highest

Priority

F FECh-FFE Dh

F FEAh -FFE Bh

no

F FE8h-FFE 9h

F FE6h-FFE 7h

F FE4h-FFE 5h

F FE2h-FFE 3h

F FE0h-FFE 1h

Lowest

Priority

20/92

20

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