P87C554 NXP Semiconductors, P87C554 Datasheet - Page 62

• 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
01B8
01BB
01BD
00F8
00FB
00FC
00FE
01C0
01C3
01C5
01C8
01CB
01CD
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
87DA
01F8
75D8C5
09
D0D0
32
75D8C5
D0D0
32
75D8C5
D0D0
32
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
! STATE
! ACTION : DATA will be transmitted, ACK bit is received.
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
.sect
.base
.sect
.base
SCON:
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
! STATE
! ACTION : Enter not addressed SLV mode.
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
.sect
.base
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
! STATE
! ACTION : Enter not addressed SLV mode.
!– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
.sect
.base
!********************************************************************************************************
!********************************************************************************************************
! END OF SI01 INTERRUPT ROUTINE
!********************************************************************************************************
!********************************************************************************************************
: B8, DATA has been transmitted, ACK received.
stsb8
0x1b8
scn
0xf8
: C0, DATA has been transmitted, NOT ACK received.
stsc0
0x1c0
: C8, Last DATA has been transmitted (AA=0), ACK received.
stsc8
0x1c8
mov
mov
ajmp SCON
mov
inc
pop
reti
mov
pop
reti
mov
pop
reti
2
C, PWM,
psw,#SELRB3
S1DAT,@r1
S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
r1
psw
S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
psw
S1CON,#ENS1_NOTSTA_NOTSTO_NOTSI_AA_CR0
psw
60
! clr SI, set AA
! clr SI, set AA
! clr SI, set AA
P87C554
Product data