P87C552 NXP Semiconductors, P87C552 Datasheet - Page 50

• Manufacturer Part Number: P87C552
• Description: The 87C552 Single-Chip 8-Bit Microcontroller is manufactured in anadvanced CMOS process and is a derivative of the 80C51microcontroller family
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2003 Apr 01
80C51 8-bit microcontroller
8K/256 OTP, 8 channel 10 bit A/D, I
capture/compare, high I/O, low voltage (2.7 V to 5.5 V), low power
NUMBYTMST
BACKUP
S1CON
S1ADR
S1DAT
S1STA
HADD
PSW
MRD
IEN0
SRD
MTD
STD
SLA
IPO
P1
CR2
P1.7
EA
ORIGINAL VALUE OF NUMBYTMST
NUMBER OF BYTES AS MASTER
SLA+R/W TO BE TRANSMITTED TO SLA
HIGHER ADDRESS BYTE INTERRUPT ROUTINE
SLAVE TRANSMITTER DATA RAM
SLAVE RECEIVER DATA RAM
MASTER RECEIVER DATA RAM
MASTER TRANSMITTER DATA RAM
SPECIAL FUNCTION REGISTERS
INTERNAL DATA RAM
2
ENS1
Figure 46. SIO1 Data Memory Map
C, PWM,
P1.6
STA
PS1
ES1
ST0
R1
R0
50
SI
AA
0
CR!
0
CR0
SU00978
GC
0
DB
DA
D9
D8
D0
B8
AB
90
80
7F
53
52
51
50
4F
48
40
38
30
19
18
00
P87C552
Product data