ST62T52CMA datasheet(54/72 Pages) STMICROELECTRONICS

No. de pieza	ST62T52CMA

Descripción Electrónicos	8-BIT OTP/EPROM/FASTROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER AND EEPROM

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ST62T52CM-Auto ST62T62CM-Auto

INSTRUCTION SET (Cont’d)

Conditional Branch. The branch instructions

achieve a branch in the program when the select-

ed condition is met.

Bit Manipulation Instructions. These instruc-

tions can handle any bit in data space memory.

One group either sets or clears. The other group

(see Conditional Branch) performs the bit test

branch operations.

Control Instructions. The control instructions

control the MCU operations during program exe-

cution.

Jump and Call. These two instructions are used

to perform long (12-bit) jumps or subroutines call

inside the whole program space.

Table 18. Conditional Branch Instructions

Notes

:

b.

3-bit address

rr.

Data space register

e.

5 bit signed displacement in the range -15 to +16<F128M>

∆ . Affected. The tested bit is shifted into carry.

ee.

8 bit signed displacement in the range -126 to +129

* .

Not Affected

Table 19. Bit Manipulation Instructions

Notes:

b.

3-bit address;

* . Not<M> Affected

rr.

Data space register;

Table 20. Control Instructions

Notes:

1.

This instruction is deactivated<N>and a WAIT is automatically executed instead of a STOP if the watchdog function is selected.

∆ . Affected

*.

Not Affected

Table 21. Jump & Call Instructions

Notes:

abc. 12-bit address;

* .

Not Affected

Instruction

Branch If

Bytes

Cycles

Flags

Z

C

JRC e

C = 1

1

2

*

JRNC e

C = 0

1

2

*

JRZ e

Z = 1

1

2

*

JRNZ e

Z = 0

1

2

*

JRR b, rr, ee

Bit = 0

3

5

*

∆

JRS b, rr, ee

Bit = 1

3

5

*

∆

Instruction

Addressing Mode

Bytes

Cycles

Flags

Z

C

SET b,rr

Bit Direct

2

4

*

RES b,rr

Bit Direct

2

4

*

Instruction

Addressing Mode

Bytes

Cycles

Flags

Z

C

NOP

Inherent

1

2

*

RET

Inherent

1

2

*

RETI

Inherent

1

2

∆

STOP (1)

Inherent

1

2

*

WAIT

Inherent

1

2

*

Instruction

Addressing Mode

Bytes

Cycles

Flags

Z

C

CALL abc

Extended

2

4

*

JP abc

Extended

2

4

*

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