80C575 Datasheet, PDF (8/40 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 8K/256 OTP/ROM/ROMless, 4 comparator, failure detect circuitry, watchdog timer

Philips Semiconductors
80C51 8-bit microcontroller family
8K/256 OTP/ROM/ROMless, 4 comparator, failure detect circuitry, watchdog timer
Product specification
80C575/83C575/
87C575
Table 1.
SYMBOL
P2OD#
87C575 Special Function Registers (Continued)
DESCRIPTION
Port 2 Pullup Disable
DIRECT
BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION
ADDRESS MSB
LSB
A1H
RESET
VALUE
00H
PCON# Power Control
87H
SMOD1 SMOD0 OSF¹ POF¹ LVF¹
GF0
PD
IDL 00xxx000B
D7
D6
D5
D4
D3
D2
D1
D0
PSW*
Program Status Word
D0H
CY
AC
F0
RS1 RS0
OV
–
P
00H
RACAP2H# Timer 2 Capture High
CBH
00H
RACAP2L# Timer 2 Capture Low
CAH
00H
SADDR# Slave Address
A9H
00H
SADEN# Slave Address Mask
B9H
00H
SBUF
Serial Data Buffer
SCON*
SP
Serial Control
Stack Pointer
TCON*
Timer Control
99H
9F
9E
9D
9C
9B
9A
99
98H
SM0 SM1 SM2 REN TB8 RB8
TI
81H
8F
8E
8D
8C
8B
8A
89
88H
TF1
TR1
TF0
TR0
IE1
IT1
IE0
xxxxxxxxB
98
RI 00H
07H
88
IT0 00H
T2CON*
T2MOD#
Timer 2 Control
Timer 2 Mode Control
TH0
TH1
TH2#
TL0
TL1
TL2#
Timer High 0
Timer High 1
Timer High 2
Timer Low 0
Timer Low 1
Timer Low 2
C8H
C9H
8CH
8DH
CDH
8AH
8BH
CCH
CF
CE
CD
CC
CB
CA
C9
C8
TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2 CP/RL2 00H
–
–
–
–
–
– T2OE² DCEN xxxxxxx0B
00H
00H
00H
00H
00H
00H
TMOD
Timer Mode
89H GATE
C7
WDCON*# Watchdog Timer Control
C0H PRE2
WDL#
Watchdog Timer Reload
WFEED1# Watchdog Feed 1
WFEED2# Watchdog Feed 2
C1H
C2H
C3H
* SFRs are bit addressable.
# SFRs are modified from or added to the 80C51 SFRs.
1. Reset value depends on reset source.
2. Programmable clock-out.
C/T
C6
PRE1
M1
C5
PRE0
M0
C4
LVRE
GATE
C3
OFRE
C/T
M1
C2
C1
WDRUN WDTOF
M0
C0
WDMOD
00H
11111101B
00H
xxH
xxH
1998 May 01
8