ST7FOXK1 STMicroelectronics, ST7FOXK1 Datasheet - Page 30
![no-image](/images/manufacturer_photos/0/6/637/stmicroelectronics_sml.jpg)
ST7FOXK1
Manufacturer Part Number
ST7FOXK1
Description
Low cost flash 8bit micro
Manufacturer
STMicroelectronics
Datasheet
1.ST7FOXK1.pdf
(226 pages)
Specifications of ST7FOXK1
4 To 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance
1K write/erase cycles guaranteed Data retention
Clock Sources
Internal trimmable 8 MHz RC oscillator, auto wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
Five Power Saving Modes
Halt, Active-Halt, Auto Wakeup from Halt, Wait and Slow
A/d Converter
up to 10 input channels
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST7FOXK1T6
Manufacturer:
STMicroelectronics
Quantity:
10 000
Company:
Part Number:
ST7FOXK1T6TR
Manufacturer:
STMicroelectronics
Quantity:
10 000
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Central processing unit
5.3.1
5.3.2
5.3.3
5.3.4
30/226
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 either effective
addresses or 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.
Reset value: 111x 1xxx
These bits can be individually tested and/or controlled by specific instructions.
Arithmetic management bits
Bit 4 = H Half carry bit
This bit is set by hardware when a carry occurs between bits 3 and 4 of the ALU during
an ADD or ADC instruction. 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.
7
1
1
I1
H
Read/write
I0
ST7FOXF1, ST7FOXK1, ST7FOXK2
N
Z
C
0
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