T89C5115-RATIM datasheet(73/105 Pages) ATMEL

tên linh kiện	T89C5115-RATIM

Giải thích chi tiết về linh kiện	Low Pin Count 8-bit MCU with A/D Converter and 16-Kbytes of Flash Memory

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T89C5115

4128A–8051–04/02

PCA Registers

Table 47. CMOD Register

CMOD (S:D9h)

PCA Counter Mode Register

Reset Value = 00XX X000b

CIDL

WDTE

CPS1

CPS0

ECF

Bit

Number

Bit

Mnemonic

Description

7CIDL

PCA Counter Idle Control bit

Clear tolet thePCA runduringIdlemode.

Set tostopthe PCA whenIdlemodeisinvoked.

6WDTE

WatchDog Timer Enable

Clear to disable WatchDog Timer function on PCA Module 4,

Set to enable it.

Reserved

The value read from this bit is indeterminate. Do not set this bit.

Reserved

The value read from this bit is indeterminate. Do not set this bit.

Reserved

The value read from this bit is indeterminate. Do not set this bit.

2CPS1

EWC Count Pulse Select bits

CPS1 CPS0

Clock Source

Internal Clock, FPca/6

Internal Clock, FPca/2

Timer 0 overflow

External clock at ECI/P1.2 pin (Max. Rate = FPca/4)

1CPS0

0ECF

Enable PCA Counter Overflow Interrupt bit

Clear to disable CF bit in CCON register to generate an interrupt.

Set to enable CF bit in CCON register to generate an interrupt.

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