STEVAL-ISB005V1 STMicroelectronics, STEVAL-ISB005V1 Datasheet - Page 22
STEVAL-ISB005V1
Manufacturer Part Number
STEVAL-ISB005V1
Description
BOARD EVAL CHARGER ST7260/L6924D
Manufacturer
STMicroelectronics
Type
Battery Managementr
Specifications of STEVAL-ISB005V1
Main Purpose
Power Management, Battery Charger
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
L6924, ST72F63BK6M1
Primary Attributes
1 Cell- Li-Ion / Li-Pol, 5 V (USB Input)
Secondary Attributes
Powered by Wall Adaptor Also, LED Status Indicators
Input Voltage
5 V
Product
Power Management Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
L6924D, ST7260
Other names
497-8428
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STEVAL-ISB005V1
Manufacturer:
STMicroelectronics
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1
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Central processing unit (CPU)
6.3.1
6.3.2
6.3.3
6.3.4
22/139
Accumulator (A)
The Accumulator is an 8-bit general purpose register used to hold operands and the results
of the arithmetic and logic calculations and to manipulate data.
Index registers (X and Y)
In indexed addressing modes, these 8-bit registers are used to create effective addresses or
as temporary storage areas for data manipulation. (The Cross-Assembler generates a
precede instruction (PRE) to indicate that the following instruction refers to the Y register.)
The Y register is not affected by the interrupt automatic procedures (not pushed to and
popped from the stack).
Program counter (PC)
The program counter is a 16-bit register containing the address of the next instruction to be
executed by the CPU. It is made of two 8-bit registers PCL (Program Counter Low which is
the LSB) and PCH (Program Counter High which is the MSB).
Condition code register (CC)
The 8-bit Condition Code register contains the interrupt mask and four flags representative
of the result of the instruction just executed. This register can also be handled by the PUSH
and POP instructions. These bits can be individually tested and/or controlled by specific
instructions.
Table 8.
CC
BIt Name
4
7
1
H
Half carry
CC register description
This bit is set by hardware when a carry occurs between bits 3 and 4 of the ALU
during an ADD or ADC instructions. It is reset by hardware during the same
instructions.
0: No half carry has occurred.
1: A half carry has occurred.
This bit is tested using the JRH or JRNH instruction. The H bit is useful in BCD
arithmetic subroutines.
6
1
5
1
R/W
H
4
Function
R/W
3
I
R/W
N
2
Reset value: 111x1xxx
R/W
1
Z
ST7260xx
R/W
C
0
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