EM6821 datasheet(51/68 Pages) EMMICRO

51 / 68 page

EM6821

www.emmicroelectronic.com

Name

Add

Hex

Add

Dec.

Reset

Value

Read Bits

Write Bits

Remarks

b'3210

Read / Write Bits

RegPBData

0000

0: PB[0]

1: PB[1]

2: PB[2]

3: PB[3]

0: PBData[0]

1: PBData[1]

2: PBData[2]

3: PBData[3]

Port B data output

Pin port B read

Default : 0

RegSCntl1

0000

0: MSBnLSB

1: POSnNeg

2: MS0

3: MS1

Serial interface

control 1

RegSCntl2

0000

0: OM[0]

1: OM[1]

2: Status

3: Start

Serial interface

control 2

RegSDataL

0000

0: SerDataL[0]

1: SerDataL[1]

2: SerDataL[2]

3: SerDataL[3]

Serial interface

low data nibble

RegSDataH

0000

0: SerDataH[0]

1: SerDataH[1]

2: SerDataH[2]

3: SerDataH[3]

Serial interface

high data nibble

RegSPData

0000

0: PSP[0]

1: PSP[1]

2: PSP[2]

3: PSP[3]

0: SerPData[0]

1: SerPData[1]

2: SerPData[2]

3: SerPData[3]

Serial interface

parallel data out

RegMelFSel

0000

0: MelFSel[0]

1: MelFSel[1]

2: MelFSel[2]

3: BzOutEn

Melody frequency select and

output enable control

RegMelTim

0000

0:FTimSel0

1:FTimSel1

2:Auto

3:FlBuzzer

0:FTimSel0

1:FTimSel1

2:Auto

3:SwBuzzer

Melody timer control

RegMelPeri

0000

0: -

1: -

2: -

3: -

0: Per[0]

1: Per[1]

2: Per[2]

3: Per[3]

Melody timer period

RegCCntl1

0000

0: CountFSel0

1: CountFSel1

2: CountFSel2

3: UP/Down

10-bit counter

control 1;

frequency and up/down

RegCCntl2

0000

0: '0'

1: EnComp

2: EvCount

3: Start

0 : Load

1: EnComp

2: EvCount

3: Start

10-bit counter control 2;

comparison, event counter and

start

RegCDataL

0000

0: Count[0]

1: Count[1]

2: Count[2]

3: Count[3]

0: CReg[0]

1: CReg[1]

2: CReg[2]

3: CReg[3]

10-bit counter

data low nibble

RegCDataM

0000

0: Count[4]

1: Count[5]

2: Count[6]

3: Count[7]

0: CReg[4]

1: CReg[5]

2: CReg[6]

3: CReg[7]

10-bit counter

data middle nibble

RegCDataH

0000

0: Count[8]

1: Count[9]

2: BitSel[0]

3: BitSel[1]

0: CReg[8]

1: CReg[9]

2: BitSel[0]

3: BitSel[1]

10 bit counter

data high bits

RegMSCCntl1

0000

0: '0'

1: dT/MSC

2: PA3/µP

3:RunEn/Stop

0: ResMSC

1: dT/MSC

2: PA3/µP

3:RunEn/Stop

millisecond counter

control register 1;

reset, delta time, control source

EM6821 Datasheet(PDF) 51 Page - EM Microelectronic - MARIN SA

EM6821 Datasheet(HTML) 51 Page - EM Microelectronic - MARIN SA

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