AT80C51RD2 Atmel Corporation, AT80C51RD2 Datasheet - Page 7

• Manufacturer Part Number: AT80C51RD2
• Manufacturer: Atmel Corporation

Specifications of AT80C51RD2

• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Uart: 1
• Sram (kbytes): 1.25
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Watchdog: Yes

Table 4-1.
4113D–8051–01/09
D8h
D0h
C8h
C0h
F8h
F0h
E8h
E0h
B8h
B0h
A8h
A0h
98h
90h
88h
80h
Addressable
00X0 0000
0000 0000
0000 0000
0000 0000
0000 0000
1111 1111
0000 0000
1111 1111
0000 0000
1111 1111
0000 0000
1111 1111
X000 000
T2CON
CCON
Reserved
SCON
TCON
PSW
ACC
IPL0
IE0
Bit
0/8
0/8
P3
P2
P1
P0
B
SFR Mapping
XXXX XXX0b
XXXX XXXX
XXXX XX00
00XX X000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0111
T2MOD
SADEN
SADDR
CMOD
TMOD
SBUF
IE1
1/9
CH
1/9
CL
SP
Table 3 shows all SFRs with their address and their reset value.
XXXX XXX0b
XXXX XXXX
XXXX XXXX
XXXX XXX0
X000 0000
0000 0000
0000 0000
0000 0000
0000 0000
CCAP0H
CCAPM0
CCAP0L
RCAP2L
AUXR1
IPL1
BRL
DPL
TL0
2/A
2/A
XXXX XXX0b
XXXX XXXX
XXXX XXXX
XXX0 0000
X000 0000
0000 0000
0000 0000
0000 0000
BDRCON
CCAP1H
CCAPM1
RCAP2H
CCAP1L
IPH1
DPH
TL1
3/B
3/B
Non-bit Addressable
XXXX XXXX
XXXX XXXX
X000 0000
0000 0000
0000 0000
0000 0000
CCAPL2H
CCAPL2L
CCAPM2
KBLS
TH0
TL2
4/C
4/C
XXXX XXXX
XXXX XXXX
X000 0000
0000 0000
0000 0000
0000 0000
CCAPL3H
CCAPL3L
CCAPM3
TH2
KBE
TH1
5/D
5/D
XXXX XXXX
XXXX XXXX
XXXX XXXX
XX0X 0000
X000 0000
0000 0000
CCAPL4H
CCAPL4L
WDTRST
CCAPM4
AUXR
KBF
6/E
6/E
AT80C51RD2
XXXX X000
X000 0000
1111 1111
0000 0000
00X1 0000
WDTPRG
CKCON0
PCON
CKRL
IPH0
7/F
7/F
EFh
DFh
D7h
CFh
C7h
BFh
AFh
FFh
F7h
E7h
B7h
A7h
9Fh
8Fh
97h
87h
7