SH7616 datasheet(281/935 Pages) RENESAS

281 / 935 page

Section 7 Bus State Controller (BSC)

Rev. 2.00 Mar 09, 2006 page 255 of 906

REJ09B0292-0200

7.1.5

Address Map

The address map, which has a memory space of 320 Mbytes, is divided into five spaces

. The types

and data width of devices that can be connected are specified for each space

. The overall space

address map is shown in table 7.3

. Since the spaces of the cache area and the cache-through area

are actually the same, and the maximum memory space that can be connected is 160 Mbytes. This

means that when address H'20000000 is accessed in a program, the data accessed is actually in

H'00000000.

The chip has 16-kbyte RAM as on-chip memory. The on-chip RAM is divided into an X area and

a Y area, which can be accessed in parallel with the DSP instruction. See the SH-1/SH-2/SH-DSP

Programming Manual for more information.

There are several spaces for cache control. These include the associative purge space for cache

purges, address array read/write space for reading and writing addresses (address tags), and data

array read/write space for forced reads and writes of data arrays.

Table 7.3

Address Map

Address

Space

Memory

Size

H'00000000–H'01FFFFFF

CS0 space, cache area

Ordinary space or burst

ROM

32 Mbytes

H'02000000–H'03FFFFFF

CS1 space, cache area

Ordinary space

32 Mbytes

H'04000000–H'05FFFFFF

CS2 space, cache area

Ordinary space or

synchronous DRAM*

32 Mbytes

H'06000000–H'07FFFFFF

CS3 space, cache area

Ordinary space,

synchronous DRAM*

2, or

DRAM

32 Mbytes

H'08000000–H'09FFFFFF

CS4 space, cache area

Ordinary space (I/O

device)

32 Mbytes

H'0A000000–H'0FFFFFFF Reserved*

H'10000000–H'1000DFFF

Reserved*

H'1000E000–H'1000EFFF On-chip X RAM area

4 kbytes

H'1000F000–H'1001DFFF Reserved*

H'1001E000–H'1001EFFF On-chip Y RAM area

4 kbytes

H'1001F000–H'1FFFFFFF Reserved*

H'20000000–H'21FFFFFF

CS0 space, cache-through

area

Ordinary space or burst

ROM

32 Mbytes

H'22000000–H'23FFFFFF

CS1 space, cache-through

area

Ordinary space

32 Mbytes

SH7616 Datasheet(PDF) 281 Page - Renesas Technology Corp

SH7616 Datasheet(HTML) 281 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL