GMS81032 datasheet(43/101 Pages) HYNIX

Part #	GMS81032

Description	8-BIT SINGLE CHIP MICROCOMPUTERS

PDF	101 Pages

Scroll/Zoom	100%

Manufacturer	HYNIX [Hynix Semiconductor]

Direct Link	http://www.skhynix.com/kor/main.do

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43 / 101 page

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4.1.4.1 Control of B.I.T

If bit3(BTCL) of CKCTLR is set to ¡È1¡È, B.I.T is cleared, and then, after one machine

cycle, BTCL becomes ¡È0¡È, and B.I.T starts counting. BTCL is set to ¡È0¡È in reset

state.

WDTON

ENPCK

BTCL

BTS2

BTS1

BTS0

CKCTLR

W <00C7H>

BTCL

B.I.T Operation

free-run

Automatically cleared, after one cycle

Clock Control Register

4.1.4.2 Input Clock Selection of Basic Interval Timer

The input clock of B.I.T can be selected from the prescaler within a range of 2us to

256us by clock input selection bits(BTS2~BTS0). (at fex = 4MHz).

In reset state, or power on reset, BTS2=1, BTS1=1, BTS0=1 to secure the longest

oscillation stabilization time.

B.I.T can generate the wide range of basic interval time interrupt request(IFBIT) by

selecting prescaler output.

Interrupt interval can be selected to 8 kinds of interval time as shown in Table. 4.1.

Chapter 4. Peripheral Hardware

GMS81032 Datasheet(PDF) 43 Page - Hynix Semiconductor