AT89C51CC02CA-TDSUM ATMEL [ATMEL Corporation], AT89C51CC02CA-TDSUM Datasheet - Page 29

• Manufacturer Part Number: AT89C51CC02CA-TDSUM
• Description: Enhanced 8-bit Microcontroller with CAN Controller and Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Registers
4126J–CAN–05/06
Table 18. PSW Register
PSW (S:D0h)
Program Status Word Register
Reset Value = 0000 0000b
Number
4 - 3
CY
Bit
7
7
6
5
2
1
0
Mnemonic Description
RS1:0
AC
Bit
CY
AC
OV
F0
F1
6
P
Carry Flag
Carry out from bit 1 of ALU operands.
Auxiliary Carry Flag
Carry out from bit 1 of addition operands.
User Definable Flag 0
Register Bank Select bits
Refer to Table 17 for bits description.
Overflow Flag
Overflow set by arithmetic operations.
User Definable Flag 1
Parity bit
Set when ACC contains an odd number of 1’s.
Cleared when ACC contains an even number of 1’s.
F0
5
RS1
4
RS0
3
AT/T89C51CC02
OV
2
F1
1
P
0
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