參數(shù)資料
型號： ST72P63BH4T1
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, ROHS COMPLIANT, LQFP-48
文件頁數(shù)： 5/145頁
文件大小： 2984K
代理商： ST72P63BH4T1
ST7263BDx ST7263BHx ST7263BKx ST7263BE
102/145
13 Instruction set
13.1 ST7 addressing modes
The ST7 Core features 17 different addressing
modes which can be classified in 7 main groups:
The ST7 instruction set is designed to minimize
the number of bytes required per instruction: To do
so, most of the addressing modes may be subdi-
vided in two sub-modes called long and short:
– Long addressing mode is more powerful be-
cause it can use the full 64 Kbyte address space,
however it uses more bytes and more CPU cy-
cles.
– 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 in-
structions use short addressing modes only
(CLR, CPL, NEG, BSET, BRES, BTJT, BTJF,
INC, DEC, RLC, RRC, SLL, SRL, SRA, SWAP)
The ST7 Assembler optimizes the use of long and
short addressing modes.
Table 25. ST7 addressing mode overview
Note 1. At the time the instruction is executed, the Program Counter (PC) points to the instruction follow-
ing JRxx.
Addressing mode
Example
Inherent
nop
Immediate
ld A,#$55
Direct
ld A,$55
Indexed
ld A,($55,X)
Indirect
ld A,([$55],X)
Relative
jrne loop
Bit operation
bset
byte,#5
Mode
Syntax
Destination/
source
Pointer
address
(Hex.)
Pointer
size
(Hex.)
Length
(bytes)
Inherent
nop
+ 0
Immediate
ld A,#$55
+ 1
Short
Direct
ld A,$10
00..FF
+ 1
Long
Direct
ld A,$1000
0000..FFFF
+ 2
No Offset
Direct
Indexed
ld A,(X)
00..FF
+ 0 (with X register)
+ 1 (with Y register)
Short
Direct
Indexed
ld A,($10,X)
00..1FE
+ 1
Long
Direct
Indexed
ld A,($1000,X)
0000..FFFF
+ 2
Short
Indirect
ld A,[$10]
00..FF
byte
+ 2
Long
Indirect
ld A,[$10.w]
0000..FFFF
00..FF
word
+ 2
Short
Indirect
Indexed
ld A,([$10],X)
00..1FE
00..FF
byte
+ 2
Long
Indirect
Indexed
ld A,([$10.w],X)
0000..FFFF
00..FF
word
+ 2
Relative
Direct
jrne loop
PC-128/PC+1271)
+ 1
Relative
Indirect
jrne [$10]
PC-128/PC+1271)
00..FF
byte
+ 2
Bit
Direct
bset $10,#7
00..FF
+ 1
Bit
Indirect
bset [$10],#7
00..FF
byte
+ 2
Bit
Direct
Relative
btjt $10,#7,skip
00..FF
+ 2
Bit
Indirect
Relative
btjt [$10],#7,skip 00..FF
00..FF
byte
+ 3
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ST72T101G1M6 功能描述:8位微控制器 -MCU OTP EPROM 4K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72T101G2B6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72T101G2M6 功能描述:8位微控制器 -MCU RO 511-ST72C104G2M6 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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