AT80C51RD2 Atmel Corporation, AT80C51RD2 Datasheet - Page 21
AT80C51RD2
Manufacturer Part Number
AT80C51RD2
Description
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT80C51RD2-RLRUM
Manufacturer:
NXP
Quantity:
8 243
Company:
Part Number:
AT80C51RD2-SLRUM
Manufacturer:
Atmel
Quantity:
967
Company:
Part Number:
AT80C51RD2-SLSUM
Manufacturer:
Atmel
Quantity:
1 445
Company:
Part Number:
AT80C51RD2-UM
Manufacturer:
FAIRCHIL
Quantity:
550
4113D–8051–01/09
Table 9-2.
T2MOD - Timer 2 Mode Control Register (C9h)
Reset Value = XXXX XX00b
Not bit addressable
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic
T2MOD Register
DCEN
T2OE
6
-
Bit
-
-
-
-
-
-
Description
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
Cleared 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
Cleared to disable Timer 2 as up/down counter.
Set to enable Timer 2 as up/down counter.
5
-
4
-
3
-
2
-
AT80C51RD2
T2OE
1
DCEN
0
21