80C554 Datasheet, PDF (59/76 Pages) NXP Semiconductors – 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

Philips Semiconductors
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
Preliminary specification
80C554/83C554/87C554
0180
0183
0185
75D018
A6DA
01D8
00D8 D906
00DA 75D8C1
00DD
00DF
00E0
D0D0
32
75D8C5
00E3
00E4
00E6
08
D0D0
32
0188 75D8C5
018B 01E4
0190
0193
0195
75D018
A6DA
01DA
0198 75D8C5
019B D0D0
019D 32
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
mov psw,#SELRB3
mov @r0,S1DAT
ajmp REC2
! Read received DATA
.sect
.base
srs80s
0xd8
REC2:
LDAT:
NOTLDAT3:
RETsr:
djnz r1,NOTLDAT3
mov S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_NOTAA_CR0
! clr SI,AA
pop psw
reti
mov S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
! clr SI, set AA
inc r0
pop psw
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
mov S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
! clr SI, set AA
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
mov psw,#SELRB3
mov @r0,S1DAT
! Read received DATA
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
mov S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
! clr SI, set AA
pop psw
reti
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