ST72F324BJ6T6 STMicroelectronics, ST72F324BJ6T6 Datasheet - Page 136

• Manufacturer Part Number: ST72F324BJ6T6
• Description: IC MCU 8BIT 32K FLASH 44-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F324BJ6T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7232X-EVAL, ST7MDT20-DVP3, ST7MDT20J-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• For Use With: 497-6421 - BOARD EVAL DGTL BATT CHGR DESIGN497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-5590

Instruction set
11
11.1
Table 76.
136/198
Inherent
Immediate
Short
Long
No offset
Short
Long
Short
Long
Short
Instruction set
CPU addressing modes
The CPU features 17 different addressing modes which can be classified in 7 main groups
(see
Table 75.
The CPU Instruction Set is designed to minimize the number of bytes required per
instruction: To do so, most of the addressing modes may be divided in two submodes called
long and short:
●
●
The ST7 Assembler optimizes the use of long and short addressing modes.
CPU addressing mode overview
Mode
Direct
Direct
Direct
Direct
Direct
Indirect
Indirect
Indirect
Inherent
Immediate
Direct
Indexed
Indirect
Relative
Bit operation
:
Long addressing mode is more powerful because it can use the full 64 Kbyte address
space, however it uses more bytes and more CPU cycles.
Short addressing mode is less powerful because it can generally only access page
zero (0000h - 00FFh range), but the instruction size is more compact, and faster. All
memory to memory instructions use short addressing modes only (CLR, CPL, NEG,
BSET, BRES, BTJT, BTJF, INC, DEC, RLC, RRC, SLL, SRL, SRA, SWAP)
Table
Indexed
Indexed
Indexed
Indexed
75).
Addressing mode groups
Addressing mode
nop
ld A,#$55
ld A,$10
ld A,$1000
ld A,(X)
ld A,($10,X)
ld A,($1000,X)
ld A,[$10]
ld A,[$10.w]
ld A,([$10],X)
Syntax
Doc ID13466 Rev 4
00..FF
0000..FFFF
00..FF
00..1FE
0000..FFFF
00..FF
0000..FFFF
00..1FE
Destination
nop
ld A,#$55
ld A,$55
ld A,($55,X)
ld A,([$55],X)
jrne loop
bset byte,#5
Pointer address
00..FF
00..FF
00..FF
(Hex.)
Example
Pointer size
(Hex.)
word
byte
byte
ST72324B-Auto
Length
(bytes)
+ 0
+ 1
+ 1
+ 2
+ 0
+ 1
+ 2
+ 2
+ 2
+ 2