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Section 3 MCU Operating Modes
Rev.2.00 Jun. 28, 2007 Page 61 of 666
REJ09B0311-0200
Section 3 MCU Operating Modes
3.1 Operating
Mode
Selection
This LSI has two operating modes (modes 4 and 5). The operating mode is selected by the setting
of mode pins (MD2 to MD0). Table 3.1 lists MCU operating mode settings.
Table 3.1
MCU Operating Mode Settings
External Data
Bus Width
MCU
Operating
Mode MD2
MD1
MD0
CPU
Operating
Mode
Address
Space Description
On-Chip
ROM
Default Max.
4
1
0
0
Advanced
16 Mbytes
Disabled
16 bits 16 bits
5
1 0 1
On-chip ROM
disabled extended
mode
Disabled
8 bits
16 bits
In this LSI, advanced mode for the CPU operating mode, 16 Mbytes for the address space, and
eight or 16 bits for the default external bus width are available.
In modes 4 and 5, which are external extended modes, it is possible to access the external memory
and devices. In external extended mode, the external address space can be designated as 8-bit or
16-bit address space for each area by the bus controller after starting program execution. If 16-bit
address space is designated for any one area, the bus mode switches to 16 bits. If 8-bit address
space is designated for all areas, the bus mode switches to 8 bits.
Summary of Contents for H8SX/1650
Page 2: ...Rev 2 00 Jun 28 2007 Page ii of xxii...
Page 106: ...Section 4 Exception Handling Rev 2 00 Jun 28 2007 Page 84 of 666 REJ09B0311 0200...
Page 142: ...Section 5 Interrupt Controller Rev 2 00 Jun 28 2007 Page 120 of 666 REJ09B0311 0200...
Page 326: ...Section 8 I O Ports Rev 2 00 Jun 28 2007 Page 304 of 666 REJ09B0311 0200...
Page 470: ...Section 12 Watchdog Timer WDT Rev 2 00 Jun 28 2007 Page 448 of 666 REJ09B0311 0200...
Page 566: ...Section 14 A D Converter Rev 2 00 Jun 28 2007 Page 544 of 666 REJ09B0311 0200...
Page 574: ...Section 16 RAM Rev 2 00 Jun 28 2007 Page 552 of 666 REJ09B0311 0200...
Page 584: ...Section 17 Clock Pulse Generator Rev 2 00 Jun 28 2007 Page 562 of 666 REJ09B0311 0200...
Page 638: ...Section 19 List of Registers Rev 2 00 Jun 28 2007 Page 616 of 666 REJ09B0311 0200...
Page 668: ...Section 20 Electrical Characteristics Rev 2 00 Jun 28 2007 Page 646 of 666 REJ09B0311 0200...
Page 676: ...Appendix Rev 2 00 Jun 28 2007 Page 654 of 666 REJ09B0311 0200...
Page 688: ...Rev 2 00 Jun 28 2007 Page 666 of 666 REJ09B0311 0200...
Page 691: ......
Page 692: ...H8SX 1650 Group Hardware Manual...