AT89C5115 Atmel Corporation, AT89C5115 Datasheet - Page 65

• 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

4128G–8051–02/08
Table 44. T2MOD Register
T2MOD (S:C9h)
Timer 2 Mode Control Register
Reset Value = XXXX XX00b
Not bit addressable
Table 45. TH2 Register
TH2 (S:CDh)
Timer 2 High Byte Register
Reset Value = 0000 0000b
Not bit addressable
Number
Number
7 - 0
Bit
Bit
7
7
-
-
7
6
5
4
3
2
1
0
Mnemonic Description
Mnemonic Description
DCEN
T2OE
Bit
Bit
6
6
-
-
-
-
-
-
-
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Timer 2 Output Enable bit
Clear to program P1.0/T2 as clock input or I/O port.
Set to program P1.0/T2 as clock output.
Down Counter Enable bit
Clear to disable Timer 2 as up/down counter.
Set to enable Timer 2 as up/down counter.
High Byte of Timer 2
5
5
-
-
4
4
-
-
3
3
-
-
2
2
-
-
T2OE
1
1
-
DCEN
0
0
-
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