Datasheet

Section 18 RAM
Rev. 3.00 Mar 17, 2006 page 771 of 926
REJ09B0283-0300
Section 18 RAM
This LSI has an on-chip high-speed static RAM. The RAM is connected to the CPU by a 16-bit
data bus, enabling one-state access by the CPU to both byte data and word data.
The on-chip RAM can be enabled or disabled by means of the RAME bit in the system control
register (SYSCR). For details on the system control register (SYSCR), refer to section 3.2.2,
System Control Register (SYSCR).
Product Type Name ROM Type
RAM
Capacitance RAM Address
HD64F2676 Flash memory version 8 kbytes H'FFA000 to H'FFBFFF
HD6432676 Masked ROM version 8 kbytes H'FFA000 to H'FFBFFF
HD6432675 8 kbytes H'FFA000 to H'FFBFFF
HD6432673 8 kbytes H'FFA000 to H'FFBFFF
H8S/2678
Group
HD6412670 ROMless version 8 kbytes H'FFA000 to H'FFBFFF
H8S/2678R
Group
HD6412674R ROMless version 32 kbytes H'FF4000 to H'FFBFFF