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TMPR4937XBG-300 Datenblatt(PDF) 6 Page - Toshiba Semiconductor

Teilenummer TMPR4937XBG-300
Bauteilbeschribung  64-Bit TX System RISC TX49 Family
Download  552 Pages
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Hersteller  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMPR4937XBG-300 Datenblatt(HTML) 6 Page - Toshiba Semiconductor

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Table of Contents
ii
6.2.2
Power Reduction for Peripheral Modules............................................................................................ 6-5
6.3
Power-On Sequence ....................................................................................................................................... 6-6
7. External Bus Controller .......................................................................................................................................... 7-1
7.1
Features .......................................................................................................................................................... 7-1
7.2
Block Diagram ............................................................................................................................................... 7-2
7.3
Detailed Explanation...................................................................................................................................... 7-3
7.3.1
External Bus Control Register ............................................................................................................. 7-3
7.3.2
Global/Boot-up Options....................................................................................................................... 7-4
7.3.3
Address Mapping................................................................................................................................. 7-5
7.3.4
External Address Output ...................................................................................................................... 7-6
7.3.5
Data Bus Size....................................................................................................................................... 7-7
7.3.6
Access Mode........................................................................................................................................ 7-9
7.3.7
Access Timing ................................................................................................................................... 7-13
7.3.8
Clock Options .................................................................................................................................... 7-19
7.4
Register ........................................................................................................................................................ 7-20
7.4.1
External Bus Channel Control Register (EBCCRn) 0x9000 (ch. 0), 0x9008 (ch. 1)
0x9010 (ch. 2), 0x9018 (ch. 3) 0x9020 (ch. 4), 0x9028 (ch. 5) 0x9030 (ch. 6), 0x9038 (ch. 7)...... 7-21
7.5
Timing Diagrams ......................................................................................................................................... 7-24
7.5.1
ACE* Signal ...................................................................................................................................... 7-25
7.5.2
Normal mode access (Single, 32-bit Bus).......................................................................................... 7-27
7.5.3
Normal mode access (Burst, 32-bit Bus) ........................................................................................... 7-31
7.5.4
Normal Mode Access (Single, 16-bit bus) .........................................................................................7-33
7.5.5
Normal Mode Access (Burst, 16-bit Bus) ..........................................................................................7-37
7.5.6
Normal Mode Access (Single, 8-bit Bus) ..........................................................................................7-39
7.5.7
Normal Mode Access (Burst, 8-bit Bus) ............................................................................................ 7-42
7.5.8
Page Mode Access (Burst, 32-bit Bus) .............................................................................................. 7-44
7.5.9
External ACK Mode Access (32-bit Bus) .......................................................................................... 7-46
7.5.10
READY Mode Access (32-bit Bus) ................................................................................................... 7-52
7.6
Flash ROM, SRAM Usage Example ........................................................................................................... 7-54
8. DMA Controller...................................................................................................................................................... 8-1
8.1
Features .......................................................................................................................................................... 8-1
8.2
Block Diagram ............................................................................................................................................... 8-2
8.3
Detailed Explanation...................................................................................................................................... 8-4
8.3.1
Transfer Mode...................................................................................................................................... 8-4
8.3.2
On-chip Registers ................................................................................................................................ 8-5
8.3.3
External I/O DMA Transfer Mode ....................................................................................................... 8-5
8.3.4
Internal I/O DMA Transfer Mode ........................................................................................................ 8-8
8.3.5
Memory-Memory Copy Mode............................................................................................................. 8-9
8.3.6
Memory Fill Transfer Mode ................................................................................................................ 8-9
8.3.7
Single Address Transfer ....................................................................................................................... 8-9
8.3.8
Dual Address Transfer ....................................................................................................................... 8-12
8.3.9
DMA Transfer .................................................................................................................................... 8-17
8.3.10
Chain DMA Transfer ......................................................................................................................... 8-18
8.3.11
Dynamic Chain Operation ................................................................................................................. 8-20
8.3.12
Interrupts............................................................................................................................................ 8-21
8.3.13
Transfer Stall Detection Function ...................................................................................................... 8-21
8.3.14
Arbitration Among DMA Channels ................................................................................................... 8-22
8.3.15
Restrictions in Access to PCI Bus...................................................................................................... 8-22
8.4
DMA Controller Registers ........................................................................................................................... 8-23
8.4.1
DMA Master Control Register (DM0MCR, DM1MCR)................................................................... 8-25
8.4.2
DMA Channel Control Register (DM0CCRn, DM1CCRn) .............................................................. 8-27
8.4.3
DMA Channel Status Register (DM0CSRn, DM1CSRn)) ................................................................ 8-31
8.4.4
DMA Source Address Register (DM0SARn, DM1SARn) ................................................................ 8-33
8.4.5
DMA Destination Address Register (DM0DARn, DM1DARn)........................................................ 8-34
8.4.6
DMA Chain Address Register (DM0CHARn, DM1CHARn) ........................................................... 8-35
8.4.7
DMA Source Address Increment Register (DM0SAIRn, DM1SAIRn)............................................. 8-36


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