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SH7721 Datasheet(PDF) 411 Page - Renesas Technology Corp

Part # SH7721
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  1524 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7721 Datasheet(HTML) 411 Page - Renesas Technology Corp

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Section 9
Bus State Controller (BSC)
Rev. 3.00 Jan. 18, 2008 Page 349 of 1458
REJ09B0033-0300
Table 9.12
Relationship between A2/3BSZ[1:0], A2/3ROW[1:0], A2/3COL[1:0], and
Address Multiplex Output (1)-1
Setting
A2/3
BSZ
[1:0]
A2/3
ROW
[1:0]
A2/3
COL
[1:0]
11 (32 bits)
00 (11 bits)
00 (8 bits)
Output Pin of
This LSI
Row Address
Output
Column Address
Output
Synchronous
DRAM Pin
Function
A17
A25
A17
A16
A24
A16
A15
A23
A15
Unused
A14
A22*
2
A22*
2
A12 (BA1)
A13
A21*
2
A21*
2
A11 (BA0)
Specifies bank
A12
A20
L/H*
1
A10/AP
Specifies
address/precharge
A11
A19
A11
A9
A10
A18
A10
A8
A9
A17
A9
A7
A8
A16
A8
A6
A7
A15
A7
A5
A6
A14
A6
A4
A5
A13
A5
A3
A4
A12
A4
A2
A3
A11
A3
A1
A2
A10
A2
A0
Address
A1
A9
A1
A0
A8
A0
Unused
Example of connected memory
64-Mbit product (512 kwords x 32 bits x 4 banks, column 8 bits product): 1
16-Mbit product (512 kwords x 16 bits x 2 banks, column 8 bits product): 2
Notes: 1. L/H is a bit used in the command specification; it is fixed at low or high according to the
access mode.
2. Bank address specification



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