TMP91C829 datasheet(21/204 Pages) TOSHIBA

tên linh kiện	TMP91C829

Giải thích chi tiết về linh kiện	Original CMOS 16-Bit Microcontroller

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TMP91C829

2006-03-15

91C829-19

3.4.6

Standby Controller

(1) HALT modes

When the HALT instruction is executed, the operating mode switches to IDLE2,

IDLE1 or STOP mode, depending on the contents of the SYSCR2<HALTM1:0>

The subsequent actions performed in each mode are as follows:

a. IDLE2: The CPU only is halted.

In IDLE2 mode internal I/O operations can be performed by setting the

following registers.

Table 3.4.1 shows the registers of setting operation during IDLE2 mode.

Table 3.4.1 The Registers of Setting Operation during IDLE2 Mode

Internal I/O

SFR

TMRA01

TA01RUN<I2TA01>

TMRA23

TA23RUN<I2TA23>

TMRA45

TA45RUN<I2TA45>

TMRB0

TB0RUN<I2TB0>

SIO0

SC0MOD1<I2S0>

SIO1

SC1MOD1<I2S0>

AD converter

ADMOD1<I2AD>

WDT

WDMOD<I2WDT>

b. IDLE1: Only the oscillator to operate.

STOP: All internal circuits stop operating.

The operation of each of the different HALT modes is described in Table 3.4.2.

Table 3.4.2 I/O Operation during HALT Modes

HALT Mode

IDLE2

IDLE1

STOP

SYSCR2<HALTM1:0>

CPU

Stop

I/O ports

Maintain same state as when HALT instruction was executed.

See Table 3.4.5,

Table 3.4.6

TMRA, TMRB

SIO

AD converter

WDT

Can be selected

Block

Interrupt controller

Operational

Stopped

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