HD6412350 Hitachi, HD6412350 Datasheet - Page 165

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

6.3.5
Areas in Normal Mode
In normal mode, a 64-kbyte address space comprising part of area 0 is controlled. Area
partitioning is not performed in normal mode. In ROM-disabled expansion mode, the space
excluding the on-chip RAM and internal I/O registers is external space. In ROM-enabled
expansion mode* the space excluding the on-chip ROM*, on-chip RAM, and internal I/O registers
is external space. The on-chip RAM is enabled when the RAME bit in the system control register
(SYSCR) is set to 1; when the RAME bit is cleared to 0, the on-chip RAM is disabled and the
corresponding space becomes external space .
When external space is accessed, the CS0 signal can be output.
The basic bus interface or burst ROM interface can be selected.
Note: * Only applies to the H8S/2351.
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