80C554 datasheet(59/76 Pages) PHILIPS

59 / 76 page

Philips Semiconductors

Preliminary specification

80C554/83C554/87C554

80C51 8-bit microcontroller – 6 clock operation

16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM,

capture/compare, high I/O, 64L LQFP

2000 Nov 10

!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

! STATE

: 80, Previously addressed with own SLA. DATA received, ACK returned.

! ACTION : Read DATA.

IF received DATA was the last

THEN superfluous DATA will be received and NOT ACK returned

ELSE next DATA will be received and ACK returned.

!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

.sect

srs80

.base

0x180

0180

75D018

mov

psw,#SELRB3

0183

A6DA

mov

@r0,S1DAT

! Read received DATA

0185

01D8

ajmp REC2

.sect

srs80s

.base

0xd8

00D8

D906

REC2:

djnz

r1,NOTLDAT3

00DA

75D8C1

LDAT:

mov

S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_NOTAA_CR0

! clr SI,AA

00DD

D0D0

pop

psw

00DF

reti

00E0

75D8C5

NOTLDAT3:

mov

S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0

! clr SI, set AA

00E3

inc

00E4

D0D0

RETsr:

pop

psw

00E6

reti

!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

! STATE

: 88, Previously addressed with own SLA. DATA received NOT ACK returned.

! ACTION : No save of DATA, Enter NOT addressed SLV mode.

Recognition of own SLA. General call recognized, if S1ADR. 0–1.

!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

.sect

srs88

.base

0x188

0188

75D8C5

mov

S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0

! clr SI, set AA

018B

01E4

ajmp RETsr

!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

! STATE

: 90, Previously addressed with general call.

DATA has been received, ACK has been returned.

! ACTION : Read DATA.

After General call only one byte will be received with ACK

the second DATA will be received with NOT ACK.

DATA will be received and NOT ACK returned.

!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

.sect

srs90

.base

0x190

0190

75D018

mov

psw,#SELRB3

0193

A6DA

mov

@r0,S1DAT

! Read received DATA

0195

01DA

ajmp LDAT

!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

! STATE

: 98, Previously addressed with general call.

DATA has been received, NOT ACK has been returned.

! ACTION : No save of DATA, Enter NOT addressed SLV mode.

Recognition of own SLA. General call recognized, if S1ADR. 0–1.

!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

.sect

srs98

.base

0x198

0198

75D8C5

mov

S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0

! clr SI, set AA

019B

D0D0

pop

psw

019D

reti

80C554 Datasheet(PDF) 59 Page - NXP Semiconductors

80C554 Datasheet(HTML) 59 Page - NXP Semiconductors

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