ST7260E1 STMicroelectronics, ST7260E1 Datasheet - Page 32

• Manufacturer Part Number: ST7260E1
• Description: LOW SPEED USB 8-BIT MCU FAMILY WITH UP TO 8K FLASH/ROM AND SERIAL COMMUNICATION INTERFACE (SCI)
• Manufacturer: STMicroelectronics

Specifications of ST7260E1

• 4 Or 8 Kbytes Program Memory: high density Flash (HDFlash), or FastROM with readout and write protection

Interrupts
Table 10.
8.0.1
32/139
N°
1
2
3
4
5
Source
RESET
FLASH
TIMER
TRAP
block
USB
USB
SCI
ITi
Interrupt mapping
Interrupt register (ITRFRE)
Table 11.
Table 12.
ITRFRE
Address (Hex.) Register label
Bit
7:0
IT8E
R/W
7
0008h
(i=1 to
Name
ITiE
8)
Flash Start Programming Interrupt
ITRFRE register description
Interrupt register map and reset values
Interrupt enable control bits
IT7E
R/W
If an ITiE bit is set, the corresponding interrupt is generated when:
or
No interrupt is generated elsewhere.
– a rising edge occurs on the pin PA4/IT1 or PA5/IT2 or PB4/IT5 or PB5/IT6
– a falling edge occurs on the pin PA6/IT3 or PA7/IT4 or PB6/IT7 or PB7/IT8
Timer Peripheral Interrupts
USB Peripheral Interrupts
6
SCI Peripheral Interrupts
ITRFRE
reset value
End Suspend Mode
External Interrupts
Software Interrupt
Reserved
Description
Reset
IT6E
R/W
5
IT8E
7
0
IT5E
R/W
4
IT7E
6
0
Function
IT6E
Register
IT4E
ITRFRE
R/W
5
0
TIMSR
SCISR
label
ISTR
ISTR
3
N/A
.
IT5E
4
0
Priority
Highest
Priority
Lowest
Priority
order
IT3E
R/W
2
IT4E
Reset value: 0000 0000 (00h)
3
0
from
Halt
Exit
yes
yes
yes
no
no
IT3E
IT2E
2
0
R/W
1
FFFCh-FFFDh
FFEEh-FFEFh
FFFEh-FFFFh
FFFAh-FFFBh
FFF8h-FFF9h
FFF6h-FFF7h
FFF4h-FFF5h
FFF2h-FFF3h
FFF0h-FFF1h
IT2E
1
0
address
Vector
ST7260xx
IT1E
R/W
0
IT1E
0
0