ST52T301 datasheet(26/100 Pages) STMICROELECTRONICS

部件名	ST52T301

功能描述	8-Bit OTP/EPROM DuaLogic] MCUs WITH ADC, UART, TIMER, TRIAC & PWM DRIVER

PDF	100 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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26 / 100 page

i.e. LDCF 15, 201 (REG_CONF15=11001001)

define the following priority levels:

Level 1: INT_SCI(SCI Code: 01)

Level 2: INT_TIMER(TIMER Code: 10)

Level 3: INT_ADC(ADC Code: 00)

Level 4: INT_TRIAC(TRIAC Code: 11)

When a source provides an Interrupt request, and

the request processing is also enabled, the CU

changes the normal sequential flow of a program

by transfering programcontrol to a selected service

routine.

When an interrupt occurs the CU executes a JUMP

instruction to the address loaded in the related

location of the Interrupt Vector

When the execution returns to the original program,

it begins immediately following the interrupte d

instruction.

4.6 Interrupt RESET

An eventually pending interrupts can be reset with

the instruction RINT inti which resets the

i-th

interrupt

Bit

Name

Value

Level

0, 1

INT1

Peripheral

Code

High

2, 3

INT2

Peripheral

Code

Medium-High

4, 5

INT3

Peripheral

Code

Medium-Low

6, 7

INT4

Peripheral

Code

Low

Table 4.3. Configuration Register 15 Description

Figure 4.6. Example of a Sequence of Interrupt Requests

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ST52T301/E301

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