HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 275
HD6417320
Manufacturer Part Number
HD6417320
Description
Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
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This LSI has on-chip X-memory and Y-memory which can be used to store instructions or data.
6.1
• Page
• Memory map
Table 6.1
On the other hand, this memory is located in a part of area 1 in the physical address space. When
this memory is accessed from the physical address space, addresses in which the upper three bits
are 0 in addresses shown in table 6.1 are used. In the X-bus and Y-bus address spaces, addresses in
which the upper 16 bits are ignored in addresses of X memory and Y memory shown in table 6.1
are used.
• Ports
XYM0000S_000020020300
Page
Page 0 of X memory
Page 1 of X memory
Page 0 of Y memory
Page 1 of Y memory
There are four pages. The X memory is divided into two pages (pages 0 and 1) and the Y
memory is divided into two pages (pages 0 and 1).
The X/Y memory is located in the virtual address space, physical address space, and X-bus and
Y-bus address spaces.
In the virtual address space, this memory is located in the addresses shown in table 6.1. These
addresses are included in space P2 (when SR.MD = 1) or Uxy (when SR.MD = 0 and SR.DSP
= 1) according to the CPU operating mode.
Each page has three independent read/write ports and is connected to each bus. The X memory
is connected to the I bus, X bus, and L bus. The Y memory is connected to the I bus, Y bus,
and L bus. The L bus is used when this memory is accessed from the virtual address space.
The I bus is used when this memory is accessed from the physical address space. The X bus
and Y bus are used when this memory is accessed from the X-bus and Y-bus address spaces.
Features
X/Y Memory Virtual Addresses
Section 6 X/Y Memory
Memory Size (Total Four Pages) 16 kbytes
H'A5007000 to H'A5007FFF
H'A5008000 to H'A5008FFF
H'A5017000 to H'A5017FFF
H'A5018000 to H'A5018FFF
Rev. 3.00 Jan. 18, 2008 Page 213 of 1458
Section 6 X/Y Memory
REJ09B0033-0300
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