SST89E54RDA(2011) View Datasheet(PDF) - Silicon Storage Technology

Part Name

Description

View to exact match

SST89E54RDA
(Rev.:2011)

FlashFlex MCU

Silicon Storage Technology 

A Microchip Technology Company

FlashFlex MCU

SST89E54RD2A/RDA / SST89E58RD2A/RDA

Not Recommended for New Designs

PCA Timer/Counter Mode Register1 (CMOD)

Location

7

6

5

4

3

2

1

0

Reset Value

D9H

CIDL WDTE

-

-

-

CPS1 CPS0 ECF 00xxx000b

1. Not bit addressable

Symbol

CIDL

WDTE

-

CPS1

CPS0

Function

Counter Idle Control:

0: Programs the PCA Counter to continue functioning during idle mode

1: Programs the PCA Counter to be gated off during idle

Watchdog Timer Enable:

0: Disables Watchdog Timer function on PCA module 4

1: Enables Watchdog Timer function on PCA module 4

Not implemented, reserved for future use.

Note: User should not write ‘1’s to reserved bits. The value read from a reserved bit is indeterminate.

PCA Count Pulse Select bit 1

PCA Count Pulse Select bit 2

ECF

Selected

CPS1 CPS0 PCA Input1

0

0

0

Internal clock, fOSC/6 in 6 clock mode (fOSC/12 in 12 clock mode)

0

1

1

Internal clock, fOSC/2 in 6 clock mode (fOSC/4 in 12 clock mode)

1

0

2

Timer 0 overflow

1

1

3

External clock at ECI/P1.2 pin

(max. rate = fOSC/4 in 6 clock mode, fOSC/8 in 12 clock mode)

1. fOSC = oscillator frequency

PCA Enable Counter Overflow interrupt:

0: Disables the CF bit in CCON

1: Enables CF bit in CCON to generate an interrupt

©2011 Silicon Storage Technology, Inc.

27

DS25114A

12/11

Share Link: