AT89C5115 Atmel Corporation, AT89C5115 Datasheet - Page 88

• 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

88
AT89C5115
Table 63. ADCLK Register
ADCLK (S:F2h)
ADC Clock Prescaler
Reset Value = XXX0 0000b
Table 64. ADDH Register
ADDH (S:F5h Read Only)
ADC Data High Byte Register
Reset Value = 00h
Table 65. ADDL Register
ADDL (S:F4h Read Only)
ADC Data Low Byte Register
Reset Value = 00h
Number
Number
Number
ADAT 9
7 - 5
7 - 0
7 - 2
Bit
Bit
Bit
4-0
1-0
7
7
7
-
-
Mnemonic Description
Mnemonic Description
Mnemonic Description
ADAT 8
ADAT9:2
ADAT1:0
PRS4:0
Bit
Bit
Bit
6
6
6
-
-
-
-
Reserved
The value read from these bits are indeterminate. Do not set these bits.
Clock Prescaler
Fadc = Fcpuclock/(4*PRS)) in X1 mode
Fadc=Fcpuclock/(2*PRS) in X2 mode
ADC result
bits 9-2
Reserved
The value read from these bits are indeterminate. Do not set these bits.
ADC result
bits 1-0
ADAT 7
5
5
5
-
-
ADAT 6
PRS 4
4
4
4
-
ADAT 5
PRS 3
3
3
3
-
ADAT 4
PRS 2
2
2
2
-
ADAT 3
ADAT 1
PRS 1
1
1
1
4128G–8051–02/08
ADAT 2
ADAT 0
PRS 0
0
0
0