SH7618 Datasheet, PDF (95/646 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series

Section 4 U Memory
Section 4 U Memory
This LSI has on-chip U memory which can be used to store instructions and data.
4.1 Features
Features of the U Memory are shown below.
• Size
4 kbytes
• Address
H'E55FF000 to H'E55FFFFF
• Priority
The U memory can be accessed from the I bus by the E-DMAC and from the L bus by the
CPU. In the event of simultaneous accesses from different buses, the accesses are processed
according to the priority. The priority is: I bus > L bus.
4.2 Usage Notes
In sleep mode, the U memory cannot be accessed by the E-DMAC.
RAM04K0A_000020030900
Rev. 6.00 Jun. 12, 2007 Page 63 of 610
REJ09B0131-0600