EM78P311SXSSLASHXJ datasheet(13/68 Pages) EMC

13 / 68 page

EM78P311N

8-Bit Microcontroller

Product Specification (V1.0) 10.02.2006

• 9

(This specification is subject to change without further notice)

Bit 4 ~ Bit 2 ( TC4CK2 ~ TC4CK 0 )

: Timer/Counter 4 Clock Source Select

TC4CK2

TC4CK1

TC4CK0

Clock Source

( Normal, Idle )

Resolution

( Fosc=8M )

Max. Time

( Fosc=8M )

Fc/2^11

256uS

65mS

Fc/2^7

16uS

4mS

Fc/2^5

4uS

1mS

Fc/2^3

1uS

255uS

Fc/2^2

500nS

127.5uS

Fc/2^1

250nS

63.8uS

125nS

31.9uS

External clock (TC4 pin)

Bit 1 ~ Bit 0 ( TC4M1 ~ TC4M0 ) :

Timer/Counter 4 Operating Mode Select

TC4M1

TC4M0

Operating Mode

Timer/Counter

Reserved

Programmable Divider output

Pulse Width Modulation output

RC (Timer 4 Data Buffer)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

TC4D7

TC4D6

TC4D5

TC4D4

TC4D3

TC4D2

TC4D1

TC4D0

Bit 7 ~ Bit 0 ( TC4D7 ~ TC4D0 ) :

Data buffer of 8-bit Timer/Counter 4.

RD (Interrupt Status Flag Register 0 and INT3 Edge Detect Flag)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

INT3F

INT3R

WDTIF

EXIF0

Bit 5 ( INT3F ) :

External interrupt 3 falling edge detect flag.

INT3F = “0” :

Falling edge is not detected

INT3F = “1” :

Falling edge is detected

Bit 4 ( INT3R ) :

External interrupt 3 rising edge detect flag.

INT3R = “0” :

Rising edge is not detected

INT3R = “1” :

Rising edge is detected

Bit 1 ( WDTIF ) :

WDT time-out flag, flag cleared by software.

Bit 0 ( EXIF0 ) :

External interrupt flag (INT0). Flag cleared by software. If the INT0EN

is reset to “0”, the flag is cleared.

EM78P311SXS/XJ Datasheet(PDF) 13 Page - ELAN Microelectronics Corp

EM78P311SXS/XJ Datasheet(HTML) 13 Page - ELAN Microelectronics Corp

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