C8051F120-TB Silicon Laboratories Inc, C8051F120-TB Datasheet - Page 152
C8051F120-TB
Manufacturer Part Number
C8051F120-TB
Description
BOARD PROTOTYPING W/C8051F120
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F120-TB
Contents
Board
Processor To Be Evaluated
C8051F12x and C8051F13x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F120
Silicon Family Name
C8051F12x
Kit Contents
Board
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F120
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F120-TB
Manufacturer:
Silicon Labs
Quantity:
135
- Current page: 152 of 350
- Download datasheet (2Mb)
C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
152
Bit7:
Bit6:
Bit5:
Bits4–3: RS1–RS0: Register Bank Select.
Bit2:
Bit1:
Bit0:
R/W
CY
Bit7
CY: Carry Flag.
This bit is set when the last arithmetic operation resulted in a carry (addition) or a borrow
(subtraction). It is cleared to 0 by all other arithmetic operations.
AC: Auxiliary Carry Flag
This bit is set when the last arithmetic operation resulted in a carry into (addition) or a borrow
from (subtraction) the high order nibble. It is cleared to 0 by all other arithmetic operations.
F0: User Flag 0.
This is a bit-addressable, general purpose flag for use under software control.
These bits select which register bank is used during register accesses.
OV: Overflow Flag.
This bit is set to 1 under the following circumstances:
• An ADD, ADDC, or SUBB instruction causes a sign-change overflow.
• A MUL instruction results in an overflow (result is greater than 255).
• A DIV instruction causes a divide-by-zero condition.
The OV bit is cleared to 0 by the ADD, ADDC, SUBB, MUL, and DIV instructions in all other
cases.
F1: User Flag 1.
This is a bit-addressable, general purpose flag for use under software control.
PARITY: Parity Flag.
This bit is set to 1 if the sum of the eight bits in the accumulator is odd and cleared if the sum
is even.
RS1
0
0
1
1
R/W
AC
Bit6
SFR Definition 11.9. PSW: Program Status Word
RS0
0
1
0
1
R/W
Bit5
F0
Register Bank
RS1
R/W
Bit4
0
1
2
3
Rev. 1.4
RS0
R/W
Bit3
0x00–0x07
0x08–0x0F
0x10–0x17
0x18–0x1F
Address
R/W
OV
Bit2
R/W
Bit1
F1
SFR Address:
PARITY 00000000
SFR Page:
Bit0
R
0xD0
All Pages
Addressable
Reset Value
Bit
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