EM78P468NBQSSLASHNBQJ datasheet(43/82 Pages) EMC

Il numero della parte	EM78P468NBQS/NBQJ

Spiegazioni elettronici	8-Bit Microcontroller

PDF	82 Pages

Scroll/Zoom	100%

Produttore elettronici	EMC [ELAN Microelectronics Corp]

Homepage	http://www.emc.com.tw

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43 / 82 page

EM78P468N/L

8-Bit Microcontroller

Product Specification (V1.6) 12.31.2007

• 37

(This specification is subject to change without further notice)

6.9.4 RD/SBPCR (System, Booster and PLL Control Registers)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

−

CLK2

CLK1

CLK0

IDLE

BF1

BF0

CPUS

Bit 2 ~ 1 (BF1 ~ 0):

LCD booster frequency select bits

BF1

BF0

Booster Frequency

Fs/4

Fs/8

Fs/16

The initial setting flowchart for LCD function

IC RESET occur

*Set Port 7 snd Port 8 for general I/O or LCD segment (IOC50)

*it must be set to output port w hen the pin of port 7 and the pin of port 8 for LCD

segemnt (IOC70 and IOC80)

Set LCD Type, duty, bias, LCD frame frequency (R9)

Set LCD Booster Frequency (RD)

Clear all LCD RAM (RA and RB)

Enable LCD function (R9)

Use LCD address and LCD data buffer to implment user's applications. (RA and RB)

END

Fig.6-14 The Initial Setting Flowchart for LCD Function

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