SH7641 Datasheet, PDF (391/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 12 Bus State Controller (BSC)
Table 12.8 Relationship between BSZ1, 0, A2/3ROW1, 0, and Address Multiplex Output
(1)-2
Setting
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 Row Address Column Address
This LSI
Output Cycle Output Cycle
SDRAM Pin
Function
A17
A25
A17
Unused
A16
A24
A16
A15
A23*²
A23*²
A14
A22*²
A22*²
A13 (BA1)
Specifies bank
A13
A21
A13
A12 (BA0)
A12
A20*²
L/H*¹
A10/AP
Specifies
address/precharge
A11
A19
A11
A9
Address
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
A1
A9
A1
Unused
A0
A8
A0
Example of connected memory
128-Mbit product (1 Mword × 32 bits × 4 banks, column 8 bits product): 1
64-Mbit product (1 Mword × 16 bits × 4 banks, column 8 bits product): 2
Notes: 1. L/H is a bit used in the command specification; it is fixed at L or H according to the
access mode.
2. Bank address specification
Rev. 4.00 Sep. 14, 2005 Page 341 of 982
REJ09B0023-0400