tmpr4937 TOSHIBA Semiconductor CORPORATION, tmpr4937 Datasheet - Page 258

• Manufacturer Part Number: tmpr4937
• Description: 64-bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

9.6
SDRAM Usage Example
DIMM (168-pin) connection.
Figure 9.6.1 illustrates an example SDRAM connection. Figure 9.6.2 illustrates an example SDRAM
ADDR [19:5]
ADDR[19:5]
DATA [63:0]
TX4937
DATA[63:0]
TX4937
SDCLK [0]
DQM [7:0]
SDCLK[0]
SDCLK[1]
SDCLK[2]
SDCLK[3]
SDCS[0]*
SDCS[1]*
SDCS*[0]
DQM[7:0]
SDCLKIN
SDCLKIN
RAS*
CAS*
RAS*
CAS*
WE*
CKE
WE*
CKE
Figure 9.6.1 SDRAM (×16 bits) Connection Example
Figure 9.6.2 168-pin DIMM Connection Example
ADDR [17:5]
ADDR [19]
ADDR [18]
DQM [7]
ADDR[16:5]
ADDR[19]
ADDR[18]
UDQM LDQM
A [12:0]
BS0
BS1
CS*
RAS*
CAS*
WE*
CLK
CKE
DQ [15:0]
DQM [6]
D [63:48]
9-42
A[11:0]
BA0
BA1
DQMB[7:0]
S0
S1
RAS*
CAS*
WE*
CKE0
CKE1
CK0
CK1
DQ[63:0]
DQM [5] DQM [4] DQM [3] DQM [2]
UDQM LDQM
A [12:0]
BS0
BS1
CS*
RAS*
CAS*
WE*
CLK
CKE
SDRAM (×16 bits)
DQ [15:0]
128MB unbuffer DIMM × 2
Chapter 9 SDRAM Controller
D [47:32]
UDQM LDQM
A [12:0]
BS0
BS1
CS*
RAS*
CAS*
WE*
CLK
CKE
DQ [15:0]
A[11:0]
BA0
BA1
DQMB[7:0]
S0
S1
RAS*
CAS*
WE*
CKE0
CKE1
CK0
CK1
DQ[63:0]
D [31:16]
DQM [1] DQM [0]
UDQM LDQM
A [12:0]
BS0
BS1
CS*
RAS*
CAS*
WE*
CLK
CKE
DQ [15:0]
D [15:0]