I SuperH Architecture: Common Features RISC-type instruction set Instruction length: fixed 16-bit-long" />
參數(shù)資料
型號: R8J73437BGZV
廠商: Renesas Electronics America
文件頁數(shù): 43/46頁
文件大?。?/td> 0K
描述: SH-MOBILE 3AS
產(chǎn)品培訓(xùn)模塊: Electromagnetic Noise Reduction Techniques Part 1
標(biāo)準(zhǔn)包裝: 1
系列: SH-Mobile
核心處理器: SH-4A
芯體尺寸: 32-位
速度: 216MHz
連通性: I²C
外圍設(shè)備: DMA,LCD,WDT
輸入/輸出數(shù): 176
程序存儲器類型: ROMless
RAM 容量: 16M x 8
電壓 - 電源 (Vcc/Vdd): 1.1 V ~ 1.3 V
封裝/外殼: 模塊
包裝: 托盤
I SuperH Architecture:
Common Features
RISC-type instruction set
Instruction length: fixed
16-bit-long instructions for
improved code efficiency
Load-store architecture
(basic arithmetic and logic
operations are carried out
between registers)
Delayed unconditional branch
instructions reduce pipeline
disruption
Instruction set optimized
for the C language
CPU register set
Sixteen 32-bit general-purpose
registers
Up to 7 control registers and
4 system registers for fast jumps
and interrupt response
Efficient caching scheme
for each series
LRU replacement policy
algorithm for improved hit rates
Each family’s cache architecture
has been optimized for the best
latency/miss-rate balance: e.g.,
SH-4A devices have 32KB +
32KB, 4-way set-associative,
separate instruction and operand
caches for improved performance
4
SuperH
Family of Microcontrollers & Microprocessors
R0
31
0
31
0
R1
R0
31
0
31
0
R1
R2
R7
R2
SR: Status Register
GBR: Global Base Register
General Register
Control Register
System Register
Program Counter
R14
R15
R7
MD RR RI
M Q I I I I . . S T
31
0
31
0
MACH: Multiply and Accumulator High
MACL: Multiply and Accumulator Low
: Accessible only in Privilege mode (SH-3 and SH-4 only)
PR: Procedure Register
PC: Program Counter
--
-
--
-
SSR: Saved Status Register
31
0
SPC: Saved Program Counter
VBR: Vector Base Register
Code
compatibility
Code
compatibility
SH-4A
103 instructions
FPU, Cache operations
SH-4
91 instructions
Single/double-precision FPU
SH-3
68 instructions
MMU Control
SH-2
62 instructions
32-bit MAC
SH-1
56 instructions
SH3-DSP
160 instructions
92 DSP instructions
SH2-DSP
154 instructions
92 DSP instructions
Code
compatibility
SH-2A
91 instructions
Enhanced shift, bit,
& divide operations
112 Instructions
with FPU
Mixed
16-/32-bit length
Fixed
16-bit length
Mixed
16-/32-bit length
SuperH Instruction Set
SuperH Programming Model
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