ST72T631K4M1 STMicroelectronics, ST72T631K4M1 Datasheet - Page 89
ST72T631K4M1
Manufacturer Part Number
ST72T631K4M1
Description
Microcontrollers (MCU) OTP EPROM 16K USB/SC
Manufacturer
STMicroelectronics
Datasheet
1.ST72T631K4M1.pdf
(109 pages)
Specifications of ST72T631K4M1
Data Bus Width
8 bit
Program Memory Type
EPROM
Program Memory Size
16 KB
Data Ram Size
512 B
Interface Type
I2C, SCI, USB
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
19
Number Of Timers
2
Operating Supply Voltage
4 V to 5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
SO-34
Minimum Operating Temperature
0 C
On-chip Adc
8 bit
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72T631K4M1
Manufacturer:
SIEMENS
Quantity:
5 510
Part Number:
ST72T631K4M1
Manufacturer:
ST
Quantity:
20 000
ST7 ADDRESSING MODES (Cont’d)
6.1.6 Indirect Indexed (Short, Long)
This is a combination of indirect and short indexed
addressing modes. The operand is referenced by
its memory address, which is defined by the un-
signed addition of an index register value (X or Y)
with a pointer value located in memory. The point-
er address follows the opcode.
The indirect indexed addressing mode consists of
two sub-modes:
Indirect Indexed (Short)
The pointer address is a byte, the pointer size is a
byte, thus allowing 00 - 1FE addressing space,
and requires 1 byte after the opcode.
Indirect Indexed (Long)
The pointer address is a byte, the pointer size is a
word, thus allowing 64 Kbyte addressing space,
and requires 1 byte after the opcode.
Table 23. Instructions Supporting Direct,
Indexed,
Addressing Modes
Short Instructions Only
LD
CP
AND, OR, XOR
ADC, ADD, SUB, SBC
BCP
CLR
INC, DEC
TNZ
CPL, NEG
BSET, BRES
BTJT, BTJF
SLL, SRL, SRA, RLC,
RRC
Long and Short
Instructions
Indirect
and
Clear
Increment/Decrement
Test Negative or Zero
1 or 2 Complement
Bit Operations
Bit Test and Jump Opera-
tions
Shift and Rotate Operations
Load
Compare
Logical Operations
Arithmetic Addition/subtrac-
tion operations
Bit Compare
Indirect
Function
Function
Indexed
6.1.7 Relative Mode (Direct, Indirect)
This addressing mode is used to modify the PC
register value by adding an 8-bit signed offset to it.
The relative addressing mode consists of two sub-
modes:
Relative (Direct)
The offset follows the opcode.
Relative (Indirect)
The offset is defined in memory, of which the ad-
dress follows the opcode.
Available Relative Direct/
SWAP
CALL, JP
JRxx
CALLR
Indirect Instructions
Swap Nibbles
Call or Jump subroutine
Conditional Jump
Call Relative
Function
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