參數(shù)資料
型號： LR4500
廠商： LSI Corporation
英文描述： Superscalar Microprocessor(超標量微處理器)
中文描述： 超標量微處理器（超標量微處理器）
文件頁數(shù)： 67/172頁
文件大?。?/td> 1142K
代理商： LR4500
CPU Instruction Opcode Bit Encoding
4-31
x1
Operation codes marked with x1 are originally extended instructions in
CW4011 implementations. They are reserved instructions that cause an
exception on R4000.
x2
The operation code CACHE marked with x2 is valid only for CW4011
processors with CP0 enabled and causes a reserved instruction
exception with CP0 disabled. Bits [20:16] are subopcodes. They are
instructions for cache maintenance, and the functions are not compatible
with R4000. Recommended mnemonics are
FLUSHI
,
FLUSHD
,
FLUSHID
,
and
WB offset
(
base
). Undefined opcodes of CACHE instructions do not
cause reserved instruction exception in CW4011 implementations.
x3
Operation codes marked with x3 are originally extended instructions in
CW4011 implementations. They are used for 64-bit multiply and divide
instructions on R4000. If the MUL bit or MAD bit in the CCC register is
zero, they cause a reserved instruction exception. The CCC register is
described in detail in
Section 3.3.1, “CCC Register,”
on
page 3-5
.
x4
Operation codes marked with x4 cause a reserved instruction exception
if the MUL bit in the CCC register is zero.
x5
The operation code ERET marked with x5 is valid only on the R4000
and CW4011 in R4000 mode.
x6
Operation codes marked with x6 are coprocessor-3 instructions, which are
not available on R4000. These are available on the R3000 and CW4011.
Table 4.15
CW4011 Opcode Bit Encoding
[28:26]
Opcode
[31:29]
0
1
2
3
4
5
6
7
0
SPECIAL
REGIMM
J
JAL
BEQ
BNE
BLEZ
BGTZ
1
ADDI
ADDIU
SLTI
SLTIU
ANDI
ORI
XORI
LUI
2
COP0
COP1
COP2
COP3
x6
BEQL
BNEL
BLEZL
BGTZL
3
*rx64
*rx64
*rx64
*rx64
ADDCIU
x1
*rxf1
*rxf1
*rxf1
4
LB
LH
LWL
LW
LBU
LHU
LWR
*rx64
5
SB
SH
SWL
SW
*rx64
*rx64
SWR
CACHE
x2
6
LL
LWC1
LWC2
LWC3
x6
*rx64
*rx64
*rx64
*rx64
7
SC
SWC1
SWC2
SWC3
x6
*rx64
*rx64
*rx64
*rx64
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LR4-550 功能描述:可復位保險絲 5.5A 20V 100A Imax RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C
LR4-550F 功能描述:可復位保險絲 5.5A 20V 100A Imax RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C
LR4-550R 功能描述:可復位保險絲 RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C
LR4-550R-2 功能描述:可復位保險絲 LR4-550R-2 RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C
LR4-550RAF 功能描述:可復位保險絲 5.5A STRAP Polyswitch PTC RESET RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C
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