FS98O21 datasheet(30/136 Pages) FORTUNE

Part #	FS98O21

Description	8-bit MCU with 2k program EPROM, 128-byte RAM

PDF	136 Pages

Scroll/Zoom	100%

Manufacturer	FORTUNE [Fortune Semiconductor Corp.]

Direct Link	https://www.ic-fortune.com/eng/index.asp

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30 / 136 page

FS98O21

Rev. 1.7

30/136

property

U-0

R/W-0

NETE

ENVS

SILB[1:0]

ENLB

Bit7

Bit0

Bit 4

ENVS

: VDDA Voltage Source enable flag (Please read Section 4.2 for detailed description)

1 = VDDA is connected to VS. VS could be used as a voltage source.

0 = VDDA and VS are disconnected.

Bit 3-2 SILB[1:0]: Low Battery Comparator Input Selector (Please refer to Section 4.5 for detailed

description)

11 = No definition. The Low Battery Comparator Input is floating.

10 = Low Battery Comparator Input is selected as external analog input AIN4

01 = Low Battery Comparator Input is selected as 3.65V

00 = Low Battery Comparator Input is selected as 2.45V

Bit 1

ENLB

: Low Battery Comparator enable flag (Please refer to Section 4.5 for detailed description)

1 = Low Battery Comparator is enabled

0 = Low Battery Comparator is disabled

property

R = Readable bit

W = Writable bit

U = unimplemented bit

- n = Value at Power On

Reset

‘1’ = Bit is Set

‘0’ = Bit is Cleared

X = Bit is unknown

FS98O21 Datasheet(PDF) 30 Page - Fortune Semiconductor Corp.