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參數資料
型號: EFM32-TG108F32-SK
廠商: Energy Micro
文件頁數: 113/136頁
文件大小: 0K
描述: IC MICRO KIT GECKO 24QFN
標準包裝: 1
系列: Tiny Gecko
套件類型: 微控制器
值: 2 件 - 閃存 - 32KB
包裝: 紙板盒
安裝類型: 表面貼裝
包括封裝: 24-QFN
工具箱內容: (2) 914-1032-2-ND - MCU 32BIT 32KB FLASH 24-QFN
其它名稱: 914-1025
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
78
www.energymicro.com
ITTE
NE
; Next 3 instructions are conditional
ANDNE
R0, R0, R1
; ANDNE does not update condition flags
ADDSNE R2, R2, #1
; ADDSNE updates condition flags
MOVEQ
R2, R3
; Conditional move
CMP
R0, #9
; Convert R0 hex value (0 to 15) into ASCII
; ('0'-'9', 'A'-'F')
ITE
GT
; Next 2 instructions are conditional
ADDGT
R1, R0, #55
; Convert 0xA -> 'A'
ADDLE
R1, R0, #48
; Convert 0x0 -> '0'
IT
GT
; IT block with only one conditional instruction
ADDGT
R1, R1, #1
; Increment R1 conditionally
ITTEE
EQ
; Next 4 instructions are conditional
MOVEQ
R0, R1
; Conditional move
ADDEQ
R2, R2, #10
; Conditional add
ANDNE
R3, R3, #1
; Conditional AND
BNE.W
dloop
; Branch instruction can only be used in the last
; instruction of an IT block
IT
NE
; Next instruction is conditional
ADD
R0, R0, R1
; Syntax error: no condition code used in IT block
3.9.4 TBB and TBH
Table Branch Byte and Table Branch Halfword.
3.9.4.1 Syntax
TBB [Rn, Rm]
TBH [Rn, Rm, LSL #1]
where:
Rn
is the register containing the address of the table of branch lengths.
If Rn is PC, then the address of the table is the address of the byte immediately following the TBB
or TBH instruction.
Rm
is the index register. This contains an index into the table. For halfword tables, LSL #1 doubles
the value in Rm to form the right offset into the table.
3.9.4.2 Operation
These instructions cause a PC#relative forward branch using a table of single byte offsets for TBB, or
halfword offsets for TBH. Rn provides a pointer to the table, and Rm supplies an index into the table. For
TBB
the branch offset is twice the unsigned value of the byte returned from the table. and for TBH the
branch offset is twice the unsigned value of the halfword returned from the table. The branch occurs to
the address at that offset from the address of the byte immediately after the TBB or TBH instruction.
3.9.4.3 Restrictions
The restrictions are:
Rn must not be SP
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相關代理商/技術參數
參數描述
EFM32TG108F32-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 24QFN
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