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64F7055 Schematic ( PDF Datasheet ) - Renesas Technology

Teilenummer 64F7055
Beschreibung HD64F7055
Hersteller Renesas Technology
Logo Renesas Technology Logo 




Gesamt 30 Seiten
64F7055 Datasheet, Funktion
To all our customers
Regarding the change of names mentioned in the document, such as Hitachi
Electric and Hitachi XX, to Renesas Technology Corp.
The semiconductor operations of Mitsubishi Electric and Hitachi were transferred to Renesas
Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog
and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.)
Accordingly, although Hitachi, Hitachi, Ltd., Hitachi Semiconductors, and other Hitachi brand
names are mentioned in the document, these names have in fact all been changed to Renesas
Technology Corp. Thank you for your understanding. Except for our corporate trademark, logo and
corporate statement, no changes whatsoever have been made to the contents of the document, and
these changes do not constitute any alteration to the contents of the document itself.
Renesas Technology Home Page: http://www.renesas.com
Renesas Technology Corp.
Customer Support Dept.
April 1, 2003
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64F7055 Datasheet, Funktion
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64F7055 pdf, datenblatt
8.2.4 User Break Control Register (UBCR).................................................................. 126
8.3 Operation ........................................................................................................................... 127
8.3.1 Flow of the User Break Operation........................................................................ 127
8.3.2 Break on On-Chip Memory Instruction Fetch Cycle ........................................... 129
8.3.3 Program Counter (PC) Values Saved ................................................................... 129
8.4 Examples of Use................................................................................................................ 130
8.4.1 Break on CPU Instruction Fetch Cycle ................................................................ 130
8.4.2 Break on CPU Data Access Cycle........................................................................ 131
8.4.3 Break on DMA Cycle........................................................................................... 131
8.5 Usage Notes ....................................................................................................................... 132
8.5.1 Simultaneous Fetching of Two Instructions......................................................... 132
8.5.2 Instruction Fetches at Branches............................................................................ 132
8.5.3 Contention between User Break and Exception Processing ................................ 133
8.5.4 Break at Non-Delay Branch Instruction Jump Destination.................................. 133
8.5.5 User Break Trigger Output................................................................................... 133
8.5.6 Module Standby.................................................................................................... 134
Section 9 Bus State Controller (BSC) ......................................................................... 135
9.1 Overview............................................................................................................................ 135
9.1.1 Features ................................................................................................................ 135
9.1.2 Block Diagram...................................................................................................... 136
9.1.3 Pin Configuration ................................................................................................. 137
9.1.4 Register Configuration ......................................................................................... 137
9.1.5 Address Map ........................................................................................................ 138
9.2 Description of Registers .................................................................................................... 140
9.2.1 Bus Control Register 1 (BCR1)............................................................................ 140
9.2.2 Bus Control Register 2 (BCR2)............................................................................ 141
9.2.3 Wait Control Register (WCR).............................................................................. 144
9.2.4 RAM Emulation Register (RAMER) ................................................................... 146
9.3 Accessing External Space.................................................................................................. 148
9.3.1 Basic Timing ........................................................................................................ 148
9.3.2 Wait State Control ................................................................................................ 149
9.3.3 CS Assert Period Extension.................................................................................. 151
9.4 Waits between Access Cycles ........................................................................................... 152
9.4.1 Prevention of Data Bus Conflicts ......................................................................... 152
9.4.2 Simplification of Bus Cycle Start Detection ........................................................ 153
9.5 Bus Arbitration .................................................................................................................. 154
9.6 Memory Connection Examples ......................................................................................... 155
Section 10 Direct Memory Access Controller (DMAC).......................................... 157
10.1 Overview............................................................................................................................ 157
10.1.1 Features ................................................................................................................ 157
10.1.2 Block Diagram...................................................................................................... 158
iv
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