King Billion Electronics Co., Ltd

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HE83005

HE80000 SERIES

July 28, 2003

3

V3.4

This specification is subject to change without notice. Please contact sales person for the latest version before use.

3. Internal Block

Please always take in mind that ICE is different from IC. ICE is the whole set of HE80000 series IC, but

each IC is a subset of ICE. Never use any hardware resource that real IC didn't have, especially RAM and

register. KBIDS and compiler cannot prevent user to use some hardware resource that didn't exist. Please

check the following table and refer the abbreviation in HE80000 user's manual.

FXI, FXO

8 Bit CPU

Fast Clock

OSC.

64KB ROM

SXI, SXO

Slow Clock

OSC

128B RAM

PWM/PWMN

TC1

PWM

TC2

VO

DAC

WDT

OPO, OPIN, OPIP

OP Amp

PRTC[7:0], PRTD[7:0]

I/O Port

4. Pin Description

Pin Name I/O

Description

FXI,

FXO

B,

O

External fast clock pin. Two types of oscillator can be selected by MO_FXTAL (‘0’ for RC type and

‘1’ for crystal type). For RC type oscillator, one resistor needs to be connected between FXI and GND.

For crystal oscillator, one crystal needs to be placed between FXI and FXO. Please refer to

application circuit for details.

SXI,

SXO

I,

O

External slow clock pins. Slow clock is clock source for LCD display, TIMER1, Time-Base and other

internal blocks. Both crystal and RC oscillator are provided. The slow clock type can be selected by

mask option MO_SXTAL. Choose ‘0’ for RC type and ‘1’ for crystal oscillator.

RSTP_N

TSTP_P

I

Test input pin. Please bond this pad and reserve a test point on PCB for debugging. But for improving

ESD, please connect this point with zero Ohm resistor to GND.

PRTC[7:0]

B

8-bit bi-directional I/O port C. The output type of I/O pad can also be selected by mask option

MO_CPP[7: 0] (‘1’ for push-pull and ‘0’ for open-drain). As the output structure of I/O pad does not

contain tri-state buffer. When using the I/O as input, ‘1’ must be outputted before reading the pin.

PRTD[7:0]

B

8-bit bi-directional I/O port D. The output type of I/O pad can also be selected by mask option

MO_DPP[7: 0] (‘1’ for push-pull and ‘0’ for open-drain).

As the output structure of I/O pad does not contain tri-state buffer. When using the I/O as input, ‘1’

must be outputted before reading the pin.

PRTD[7..2] can be used as wake-up pins.

PRTD[7..6] can be as external interrupt sources.

PRTD[1..0] general I/O bi-direction pins.