2.2.1.1 Supported Ddr2 Components; 2.2.1.2 Row And Column Addressing; Figure 2-4 Rs780E Side-Port Memory Interface; Table 2-1 Supported Ddr2 Components - AMD 780E Technical Reference Manual

VDD_MEM
MEM_CALN
MEM_CALP

2.2.1.1 Supported DDR2 Components

The memory controller supports DDR2 SDRAM chips in several configurations. These chips are organized in banks,
rows (or pages), and columns. The supported DDR2 components have four or eight banks.
memory components.

Table 2-1 Supported DDR2 Components

Config Mbits
16Mbx16 256
32Mbx16 512
64Mbx16 1024

2.2.1.2 Row and Column Addressing

Table 2-2 shows how the physical address P (after taking out the bank bit) is used to provide the row and column
addressing for each size of DDR2 memories.

Table 2-2 DDR2 Memory Row and Column Addressing

A13 A12 A11 A10 A9
Row P10
Column -
Row P23
Column -
45732 AMD 780E Databook 3.10
2-4
Address MEM_A[13:0]
14
Bank Address MEM_BA[2:0]
3
Data MEM_DQ[15:0]
16
Data Strobes MEM_DQS[1:0]P/N
4
Data Mask MEM_DM[1:0]
2
Differential Clocks MEM_CKP/MEM_CKN
2
Chip Select MEM_CS#
1
MEM_CKE, MEM_RAS#,
MEM_CAS#, MEM_WE#
4
On-Die Termination MEM_ODT
1

Figure 2-4 RS780E Side-Port Memory Interface

DDR2 SDRAM
CS Mode Bank Bits Row Bits
4 2
10 2
11 3
Address
A8 A7
16Mbx16 devices
P14 P13 P12 P11 P22
- PC - P9 P8
32Mbx16 devices
P14 P13 P12 P11 P22
- PC P10 P9 P8
Mbytes
Col Bits
13 9 32
13 10 64
13 10 128
A6 A5 A4 A3 A2
P21 P20 P19 P18 P17
P7 P6 P5 P4 P3
P21 P20 P19 P18 P17
P7 P6 P5 P4 P3
Side-Port Memory Interface
Table 2-1 lists the supported
A1 A0
P16 P15
P2 P1
P16 P15
P2 P1
© 2009 Advanced Micro Devices, Inc.
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