SyncMOS Technologies International, Inc.
8051 Core
ACC*
B
SP
PSW*
DPTR
DPH
DPL
P0*
P1*
P2*
P3*
P4*
P1CON
P2CON
TCON*
THL0
TH0
TL0
THL1
TH1
TL1
T2CON*
T2MOD
RCAP2HL
RCAP2H
RCAP2L
THL2
TH2
TL2
SCON*
SBUF
ADSCR
ADCD
RTCS
RTCC
PWMC0
PWMC1
PWMD0
PWMD1
PCON
SCONF
IE*
IE1
IFR
IP*
IP1
LEDP 0
LEDP 1
LEDP 2
LEDP 3
LEDP 4
Accumulator
B register
Stack Pointer
Process Status
Data Pointer (2 Bytes)
Data Pointer High
Data Pointer Low
Port 0
Port 1
Port 2
Port 3
Port 4
P1 Control
P2 Control
Timer Control register
Timer 0 (2 Bytes)
Timer 0 High
Timer 0 Low
Timer 1 (2 Bytes)
Timer 1 High
Timer 1 Low
Timer 2 Control
Timer 2 Mode
Reload/Capture (2 bytes)
RCAP2 High
RCAP2 Low
Time 2 (2 bytes)
Timer 2 High
Time 2 Low
UART Control
UART Buffer
ADC status & control
ADC data register
RTC Status
RTC Control
PWM 0 Control
PWM 1 Control
PWM 0 Data
PWM 1 Data
Power Control register
System Control
Interrupt Enable
Interrupt Enable 1
Interrupt Flag 1
Interrupt Priority
Interrupt Priority 1
LED output in P0
LED output in P1
LED output in P2
LED output in P3
LED output in P4
E0
F0
81H
D0H
82H
83H
80H
90H
A0H
B0H
D8H
9BH
9CH
88H
8CH
8AH
8DH
8BH
C8H
C9H
CBH
CAH
CDH
CCH
98H
99H
8EH
8FH
A1H
A2H
D3H
D4H
B3H
B4H
87H
BFH
A8H
A9H
AAH
B8H
B9H
92H
93H
94H
95H
96H
SM0
COM
AD.5
RTCen
Int_sel.1
SM1
UART
SM2
A/D Converter
ADCSS1
ADCSS0
CON
AD.4
AD.3
AD.2
Real Timer Clock (RTC)
Stable
Sec.5
Sec.4
Int_sel.0
Min.5
Min.4
PWM output
SM89S16R1
8-Bits Micro-controller
With 64KB Flash ROM & 1KB RAM & RTC & ADC & PWM & PDWU embedded
00H
00H
07H
00H
00H
00H
P0.7
P1.7
P2.7
P3.7
ADC3E
TF1
P0.6
P1.6
P2.6
P3.6
I/O PORT
P0.5
P1.5
P2.5
P3.5
P0.4
P1.4
P2.4
P3.4
P0.3
P1.3
P2.3
P3.3
P4.3
PWM1E
IE1
P0.2
P1.2
P2.2
P3.2
P4.2
PWM0E
IT1
P0.1
P1.1
P2.1
P3.1
P4.1
-
-
IE0
P0.0
P1.0
P2.0
P3.0
P4.0
-
-
IT0
FFH
FFH
FFH
FFH
XFH
00H
00H
00H
00H
00H
00H
00H
00H
X0H
00H
00H
00H
00H
REN
TB8
CH1
AD.1
Sec.3
Min.3
RB8
CH0
AD.0
Sec.2
Min.2
PBS
PBS
PWMD.7
PWMD.7
PWMD.6
PWMD.6
PWMD.5
PWMD.5
PWMD.4
PWMD.4
PWMD.3
PWMD.3
PWMD.2
PWMD.2
CY
AC
F0
RS1
RS0
OV
P
ADC2E
ADC1E
ADC0E
TIMER / Counter
TF1
TF0
TR0
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
CT2
T2OE
CPRL2
DCEN
TI
RI
00H
XXH
00H
00H
Sec.1
Min.1
PFS1
PFS1
PWMD.1
PWMD.1
Sec.0
Min.0
PFS0
PFS0
PWMD.0
PWMD.0
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
Power and System
SMOD
PDWUE
EA
Interrupt system
ET2
PT2
ES0
PS0
ET1
EADC
ADCIF
PT1
PADC
EX1
ERTC
RTCIF
PX1
PRTC
PD
OME
ET0
PT0
IDLE
ALEI
EX0
PX0
LED Driving Capability Control
Specifications subject to change without notice contact your sales representatives for the most recent information.
7
Ver 2.1 SM89S16R1 08/2006
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
