UPSD3312D datasheet(53/272 Pages) STMICROELECTRONICS

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UPSD33xx

UPSD33xx instruction set summary

Doc ID 9685 Rev 7

53/272

MOV

@Ri, direct

Move direct byte to indirect

SRAM

2 byte/2 cycle

MOV

@Ri, #data

Move immediate data to

indirect SRAM

2 byte/1 cycle

MOV

DPTR, #data16

Load Data Pointer with 16-bit

constant

3 byte/2 cycle

MOVC

A, @A+DPTR

Move code byte relative to

DPTR to ACC

1 byte/2 cycle

MOVC

A, @A+PC

Move code byte relative to PC

to ACC

1 byte/2 cycle

MOVX

A, @Ri

Move XDATA (8-bit addr) to

ACC

1 byte/2 cycle

MOVX

A, @DPTR

Move XDATA (16-bit addr) to

ACC

1 byte/2 cycle

MOVX

@Ri, A

Move ACC to XDATA (8-bit

addr)

1 byte/2 cycle

MOVX

@DPTR, A

Move ACC to XDATA (16-bit

addr)

1 byte/2 cycle

PUSH

direct

Push direct byte onto stack

2 byte/2 cycle

POP

direct

Pop direct byte from stack

2 byte/2 cycle

XCH

A, Rn

Exchange register with ACC

1 byte/1 cycle

XCH

A, direct

Exchange direct byte with

ACC

2 byte/1 cycle

XCH

A, @Ri

Exchange indirect SRAM with

ACC

1 byte/1 cycle

XCHD

A, @Ri

Exchange low-order digit

indirect SRAM with ACC

1 byte/1 cycle

Table 9.

Boolean variable manipulation instruction set

Mnemonic(1)

and use

Description

Length/cycles

CLR

Clear carry

1 byte/1 cycle

CLR

bit

Clear direct bit

2 byte/1 cycle

SETB

Set carry

1 byte/1 cycle

SETB

bit

Set direct bit

2 byte/1 cycle

CPL

Compliment carry

1 byte/1 cycle

CPL

bit

Compliment direct bit

2 byte/1 cycle

Table 8.

Data transfer instruction set (continued)

Mnemonic(1)

and use

Description

Length/cycles

UPSD3312D Datasheet(PDF) 53 Page - STMicroelectronics

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