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TMPR4951B Datasheet(PDF) 5 Page - Toshiba Semiconductor

No. de pieza TMPR4951B
Descripción Electrónicos  64-Bit TX System RISC TX49 Family
Download  256 Pages
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Fabricante Electrónico  TOSHIBA [Toshiba Semiconductor]
Página de inicio  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMPR4951B Datasheet(HTML) 5 Page - Toshiba Semiconductor

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Table of Contents
i
Table of Contents
Handling Precautions
TMPR4951B
1. Introduction ............................................................................................................................................................ 1-1
1.1
Overview........................................................................................................................................................ 1-1
1.2
Notation used in this manual.......................................................................................................................... 1-1
1.2.1
Numerical notation ................................................................................................................................ 1-1
1.2.2
Data notation ......................................................................................................................................... 1-1
1.2.3
Signal notation....................................................................................................................................... 1-1
1.2.4
Register notation ................................................................................................................................... 1-1
2. Features
............................................................................................................................................................... 2-1
2.1
Block Diagram ............................................................................................................................................... 2-2
2.2
Pin Description............................................................................................................................................... 2-3
2.2.1
TX4951B pin out (100-pin LQFP) ........................................................................................................ 2-3
3. TX49/L3 Core’s Registers ...................................................................................................................................... 3-1
3.1
CPU Registers................................................................................................................................................ 3-1
3.2
CP0 Registers................................................................................................................................................. 3-2
3.2.1
Index register (Reg
#0)........................................................................................................................... 3-3
3.2.2
Random register (Reg
#1) ...................................................................................................................... 3-4
3.2.3
EntryLo0 register (Reg#2) and EntryLo1 register (Reg#3)................................................................... 3-5
3.2.4
Context register (Reg#4) ....................................................................................................................... 3-6
3.2.5
PageMask Register (Reg#5) .................................................................................................................. 3-7
3.2.6
Wired Register (Reg
#6)......................................................................................................................... 3-8
3.2.7
BadVAddr Register (Reg
#8).................................................................................................................. 3-9
3.2.8
Count Register (Reg
#9)....................................................................................................................... 3-10
3.2.9
EntryHi Register (Reg
#10).................................................................................................................. 3-11
3.2.10
Compare Register (Reg
#11) ................................................................................................................ 3-12
3.2.11
Status Register (Reg#12) ..................................................................................................................... 3-13
3.2.12
Cause Register (Reg#13)..................................................................................................................... 3-16
3.2.13
EPC Register (Reg#14) ....................................................................................................................... 3-17
3.2.14
PRId Register (Reg
#15) ...................................................................................................................... 3-18
3.2.15
Config Register (Reg
#16) ................................................................................................................... 3-19
3.2.16
LLAddr Register (Reg
#17).................................................................................................................. 3-21
3.2.17
XContext Register (Reg
#20) ............................................................................................................... 3-22
3.2.18
Debug Register (Reg
#23).................................................................................................................... 3-23
3.2.19
DEPC Register (Reg#24) .................................................................................................................... 3-25
3.2.20
TagLo Register (Reg#28) and TagHi Register (Reg#29)..................................................................... 3-26
3.2.21
ErrorEPC Register (Reg#30) ............................................................................................................... 3-27
3.2.22
DESAVE Register (Reg
#31) ............................................................................................................... 3-28
4. Memory Management System ................................................................................................................................ 4-1
4.1
Address Space Overview ............................................................................................................................... 4-1
4.1.1
Virtual Address Space ........................................................................................................................... 4-1
4.1.2
Physical Address Space ......................................................................................................................... 4-2
4.1.3
Virtual-to-Physical Address Translation ................................................................................................ 4-2
4.1.4
32-bit Mode Address Translation .......................................................................................................... 4-3
4.1.5
64-bit Mode Address Translation .......................................................................................................... 4-4
4.2
Operating Modes............................................................................................................................................ 4-5
4.2.1
User Mode Operations........................................................................................................................... 4-5
4.2.2
Supervisor Mode Operations................................................................................................................. 4-7
4.2.3
Kernel Mode Operations ....................................................................................................................... 4-9
4.3
Translation Lookaside Buffer....................................................................................................................... 4-16


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