SH7670 Datasheet, PDF (271/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 7 Bus State Controller (BSC)
Table 7.16 Relationship between BSZ[1:0], A3ROW[1:0], A3COL[1:0], and Address
Multiplex Output (6)-1
Setting
BSZ[1:0]
A3ROW[1:0] A3COL[1:0]
10 (16 bits) 10 (13 bits)
01 (9 bits)
Output Pin of Row Address Column Address
This LSI
Output
Output
SDRAM Pin
Function
A17
A26
A17
Unused
A16
A25
A16
A15
A24*²
A24*²
A14
A23*²
A23*²
A14 (BA1)
A13 (BA0)
Specifies bank
A13
A22
A13
A12
Address
A12
A21
A12
A11
A11
A20
L/H*¹
A10/AP
Specifies
address/precharge
A10
A19
A10
A9
Address
A9
A18
A9
A8
A8
A17
A8
A7
A7
A16
A7
A6
A6
A15
A6
A5
A5
A14
A5
A4
A4
A13
A4
A3
A3
A12
A3
A2
A2
A11
A2
A1
A1
A10
A1
A0
A0
A9
A0
Unused
Example of connected memory
256-Mbit product (4 Mwords × 16 bits × 4 banks, column 9 bits product): 1
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
Rev. 1.00 Nov. 14, 2007 Page 245 of 1262
REJ09B0437-0100