MSP430F14X datasheet(34/88 Pages) TI2

34 / 88 page

MSP430F149, MSP430F148, MSP430F147

MSP430F1491, MSP430F1481, MSP430F1471

MSP430F135, MSP430F133

SLAS272H – JULY 2000 – REVISED MAY 2018

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MSP430F135 MSP430F133

Detailed Description

6.2

Instruction set

The instruction set consists of 51 instructions with three formats and seven address modes. Each

instruction can operate on word and byte data. Table 6-1 lists examples of the three types of instruction

formats, and Table 6-2 lists the address modes.

Table 6-1. Instruction Word Formats

INSTRUCTION FORMAT

EXAMPLE

OPERATION

Dual operands, source-destination

ADD R4, R5

R4 + R5

→ R5

Single operands, destination only

CALL R8

→ (TOS), R8 → PC

Relative jump, unconditional or conditional

JNE

Jump-on-equal bit = 0

(1)

S = source, D = destination

Table 6-2. Address Mode Descriptions

ADDRESS MODE

S(1)

D(1)

SYNTAX

EXAMPLE

OPERATION

✓

MOV Rs, Rd

MOV R10, R11

R10

→ R11

Indexed

✓

MOV X(Rn), Y(Rm)

MOV 2(R5), 6(R6)

M(2+R5)

→ M(6+R6)

Symbolic (PC relative)

✓

MOV EDE, TONI

M(EDE)

→ M(TONI)

Absolute

✓

MOV &MEM, &TCDAT

M(MEM)

→ M(TCDAT)

Indirect

✓

MOV @Rn, Y(Rm)

MOV @R10, Tab(R6)

M(R10)

→ M(Tab+R6)

Indirect autoincrement

✓

MOV @Rn+, Rm

MOV @R10+, R11

M(R10)

→ R11

R10 + 2

→ R10

Immediate

✓

MOV #X, TONI

MOV #45, TONI

#45

→ M(TONI)

6.3

Operating Modes

The MSP430F13x, MSP430F14x, and MSP430F14x1 MCUs support one active mode and five software-

selectable low-power modes of operation. An interrupt event can wake up the MCU from any of the low-

power modes, service the request, and restore back to the low-power mode on return from the interrupt

program.

The following operating modes can be configured by software:

•

Active mode (AM)

–

All clocks are active

•

Low-power mode 0 (LPM0)

–

CPU is disabled

–

ACLK and SMCLK remain active

–

MCLK is disabled

•

Low-power mode 1 (LPM1)

–

CPU is disabled

–

ACLK and SMCLK remain active

–

MCLK is disabled

–

DC generator of the DCO is disabled if

DCO not used in active mode

•

Low-power mode 2 (LPM2)

–

CPU is disabled

–

MCLK and SMCLK are disabled

–

DC generator of the DCO remains

enabled

–

ACLK remains active

•

Low-power mode 3 (LPM3)

–

CPU is disabled

–

MCLK and SMCLK are disabled

–

DC generator of the DCO is disabled

–

ACLK remains active

•

Low-power mode 4 (LPM4)

–

CPU is disabled

–

ACLK is disabled

–

MCLK and SMCLK are disabled

–

DC generator of the DCO is disabled

–

Crystal oscillator is stopped

MSP430F14X Datasheet(PDF) 34 Page - Texas Instruments

MSP430F14X Datasheet(HTML) 34 Page - Texas Instruments

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