AT89C5115 Atmel Corporation, AT89C5115 Datasheet - Page 10

• Manufacturer Part Number: AT89C5115
• Manufacturer: Atmel Corporation

Specifications of AT89C5115

• Flash (kbytes): 16 Kbytes
• Max. Operating Frequency: 40 MHz
• Cpu: 8051-12C
• Max I/o Pins: 20
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 62.5
• Sram (kbytes): 0.5
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

SFR Mapping
Table 2. C51 Core SFRs
Table 3. I/O Port SFRs
Table 4. Timers SFRs
10
ACC
B
PSW
SP
DPL
DPH
P1
P2
P3
P4
TH0
TL0
TH1
TL1
TH2
TL2
TCON
TMOD
Mnemonic
Mnemonic
Mnemonic
AT89C5115
Add Name
Add Name
Add Name
CDh
CCh
D0h Program Status Word
C0h Port 4 (x2)
8Ch
8Dh
E0h Accumulator
F0h B Register
81h Stack Pointer
82h
83h
90h Port 1
A0h Port 2 (x2)
B0h Port 3
8Ah
8Bh
88h
89h
Data Pointer Low
byte
LSB of DPTR
Data Pointer High
byte
MSB of DPTR
Timer/Counter 0 High
byte
Timer/Counter 0 Low
byte
Timer/Counter 1 High
byte
Timer/Counter 1 Low
byte
Timer/Counter 2 High
byte
Timer/Counter 2 Low
byte
Timer/Counter 0 and
1 control
Timer/Counter 0 and
1 Modes
Tables 3 through Table 11 show the Special Function Registers (SFRs) of the
T89C5115.
GATE1
TF1
CY
7
7
7
C/T1#
TR1
AC
6
6
6
TF0
M11
F0
5
5
5
RS1
TR0
M01
4
4
4
GATE0
RS0
IE1
3
3
3
C/T0#
OV
IT1
2
2
2
M10
IE0
F1
1
1
1
4128G–8051–02/08
M00
IT0
0
0
0
P