AT80C51RD2 Atmel Corporation, AT80C51RD2 Datasheet - Page 50
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
12.2
50
Interrupt Sources and Vector Addresses
AT80C51RD2
IPH1 - Interrupt Priority High Register (B3h)
Reset Value = XXXX XXX0b
Not bit addressable
Table 12-8.
Number
Number
Bit
7
7
6
5
4
3
2
1
0
-
0
1
2
3
4
5
6
7
8
Interrupt Sources and Vector Addresses
Mnemonic Description
Polling Priority
KBDH
Bit
6
-
-
-
-
-
-
-
-
0
1
2
3
4
6
7
5
8
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.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Keyboard interrupt Priority High bit
KB DHKBDLPriority Level
0
0
1
1
0 Lowest
1
0
1 Highest
5
-
Interrupt Source
Keyboard
Timer 0
Timer 1
Timer 2
Reset
UART
INT0
INT1
PCA
4
-
3
-
CF + CCFn (n = 0-4)
TF2+EXF2
Interrupt
Request
KBDIT
RI+TI
TF0
IE0
IE1
IF1
2
-
1
-
4113D–8051–01/09
Address
Vector
000Bh
001Bh
002Bh
003Bh
0000h
0003h
0013h
0023h
0033h
KBDH
0