HT46R005 datasheet(26/62 Pages) HOLTEK

26 / 62 page

HT48R005/HT46R005

Rev. 1.00

November 29, 2011

The following table indicates the way in which the various components of the microcontroller are affected after a

power-on reset occurs.

Item

Condition After RESET

Program Counter

Reset to zero

Interrupts

All interrupts will be disabled

WDT

Clear after reset, WDT begins counting

Timer/Event Counter

Timer Counter will be turned off

Prescaler

The Timer Counter Prescaler will be cleared

Input/Output Ports

I/O ports will be setup as inputs

Stack Pointer

Stack Pointer will point to the top of the stack

The different kinds of resets all affect the internal registers of the microcontroller in different ways. To ensure reliable

continuation of normal program execution after a reset occurs, it is important to know what condition the microcontroller

is in after a particular reset occurs. The following table describes how each type of reset affects each of the

microcontroller internal registers.

HT48R005

Power-on

Reset

RES or LVR

Reset

WDT Time-out

(Normal Operation)

WDT Time-out

(HALT Mode)

PCL

0000 0000

MP0

1xxx xxxx

1uuu uuuu

MP1

1xxx xxxx

1uuu uuuu

ACC

xxxx xxxx

uuuu uuuu

TBLP

xxxx xxxx

uuuu uuuu

TBLH

-- xx xxxx

-- uu uuuu

WDTS

---- - 111

---- - uuu

STATUS

-- 00 xxxx

-- uu uuuu

-- 1u uuuu

-- 11 uuuu

INTC0

-- 00 - 000

-- uu - uuu

TMR0

xxxx xxxx

uuuu uuuu

TMR0C

- 0 1000

- u uuuu

111

-- 111

111

-- 111

111

-- 111

uuu

-- uuu

PAC

111

-- 111

111

-- 111

111

-- 111

uuu

-- uuu

PAWK

000

-- 000

000

-- 000

000

-- 000

uuu

-- uuu

PAPU

- 00 -- 000

- uu -- uuu

CTRL0

---- 00 --

---- uu --

CTRL1

-- 1010

-- uuuu

Note:

²-² not implemented

²u² means ²unchanged²

²x² means ²unknown²

HT46R005 bảng dữ liệu(PDF) 26 Page - Holtek Semiconductor Inc

HT46R005 bảng dữ liệu(HTML) 26 Page - Holtek Semiconductor Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62

bảng dữ liệu tải về

Link URL