P87C554 NXP Semiconductors, P87C554 Datasheet - Page 60

• Manufacturer Part Number: P87C554
• Description: The P87C554 Single-Chip 8-Bit Microcontroller is manufactured inan advanced CMOS process and is a derivative of the 80C51microcontroller family
• Manufacturer: NXP Semiconductors

Philips Semiconductors
0180
0183
0185
00D8
00DA
00DD
00DF
00E0
00E3
00E4
00E6
0188
018B
0190
0193
0195
0198
019B
019D
2002 Mar 25
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM, 8 channel 10-bit A/D, I
capture/compare, high I/O
75D018
A6DA
01D8
D906
75D8C1
D0D0
32
75D8C5
08
D0D0
32
75D8C5
01E4
75D018
A6DA
01DA
75D8C5
D0D0
32
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
! STATE
! ACTION : Read DATA.
!
!
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
.sect
.base
.sect
.base
REC2:
LDAT:
NOTLDAT3:
RETsr:
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
! STATE
! ACTION : No save of DATA, Enter NOT addressed SLV mode.
!
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
.sect
.base
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
! STATE
!
! ACTION : Read DATA.
!
!
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
.sect
.base
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
! STATE
!
! ACTION : No save of DATA, Enter NOT addressed SLV mode.
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
.sect
.base
: 80, Previously addressed with own SLA. DATA received, ACK returned.
srs80
0x180
srs80s
0xd8
: 88, Previously addressed with own SLA. DATA received NOT ACK returned.
srs88
0x188
: 90, Previously addressed with general call.
srs90
0x190
: 98, Previously addressed with general call.
srs98
0x198
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.
Recognition of own SLA. General call recognized, if S1ADR. 0–1.
DATA has been received, ACK has been returned.
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.
DATA has been received, NOT ACK has been returned.
Recognition of own SLA. General call recognized, if S1ADR. 0–1.
mov
mov
ajmp REC2
djnz
mov
pop
reti
mov
inc
pop
reti
mov
ajmp RETsr
mov
mov
ajmp LDAT
mov
pop
reti
2
C, PWM,
psw,#SELRB3
@r0,S1DAT
r1,NOTLDAT3
S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_NOTAA_CR0
psw
S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
r0
psw
S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
psw,#SELRB3
@r0,S1DAT
S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
psw
58
! Read received DATA
! clr SI,AA
! clr SI, set AA
! clr SI, set AA
! Read received DATA
! clr SI, set AA
P87C554
Product data