SPRS565D April 2009 – June 2014 TMS320C6743
PRODUCTION DATA.
デバイスごとのパッケージ図は、PDF版データシートをご参照ください。
The EMIFB supports a glueless interface to SDRAM devices with the following characteristics:
Table 6-21 shows the supported SDRAM configurations for EMIFB.
SDRAM Memory Data
Bus Width (bits) |
Number of Memories | EMIFB Data
Bus Size |
Rows | Columns | Banks | Total Memory (Mbits) | Total Memory (Mbytes) | Memory Density (Mbits) |
---|---|---|---|---|---|---|---|---|
16 | 1 | 16 | 13 | 8 | 1 | 32 | 4 | 32 |
1 | 16 | 13 | 8 | 2 | 64 | 8 | 64 | |
1 | 16 | 13 | 8 | 4 | 128 | 16 | 128 | |
1 | 16 | 13 | 9 | 1 | 64 | 8 | 64 | |
1 | 16 | 13 | 9 | 2 | 128 | 16 | 128 | |
1 | 16 | 13 | 9 | 4 | 256 | 32 | 256 | |
1 | 16 | 13 | 10 | 1 | 128 | 16 | 128 | |
1 | 16 | 13 | 10 | 2 | 256 | 32 | 256 | |
1 | 16 | 13 | 10 | 4 | 512 | 64 | 512 | |
1 | 16 | 13 | 11 | 1 | 256 | 32 | 256 | |
1 | 16 | 13 | 11 | 2 | 512 | 64 | 512 | |
1 | 16 | 13 | 11 | 4 | 1024 | 128 | 1024 | |
8 | 2 | 16 | 13 | 8 | 1 | 32 | 4 | 16 |
2 | 16 | 13 | 8 | 2 | 64 | 8 | 32 | |
2 | 16 | 13 | 8 | 4 | 128 | 16 | 64 | |
2 | 16 | 13 | 9 | 1 | 64 | 8 | 32 | |
2 | 16 | 13 | 9 | 2 | 128 | 16 | 64 | |
2 | 16 | 13 | 9 | 4 | 256 | 32 | 128 | |
2 | 16 | 13 | 10 | 1 | 128 | 16 | 64 | |
2 | 16 | 13 | 10 | 2 | 256 | 32 | 128 | |
2 | 16 | 13 | 10 | 4 | 512 | 64 | 256 | |
2 | 16 | 13 | 11 | 1 | 256 | 32 | 128 | |
2 | 16 | 13 | 11 | 2 | 512 | 64 | 256 | |
2 | 16 | 13 | 11 | 4 | 1024 | 128 | 512 |
Figure 6-18 shows an interface between the EMIFB and a 2M × 16 × 4 bank SDRAM device. In addition, and shows an interface between the EMIFB and two 4M × 16 × 4 bank SDRAM devices. Refer to Table 6-22, as an example that shows additional list of commonly-supported SDRAM devices and the required connections for the address pins. Note that in Table 6-22, page size/column size (not indicated in the table) is varied to get the required addressability range.
SDRAM SIZE | WIDTH | BANKS | MEMORY | ADDRESS PINS |
---|---|---|---|---|
64M bits | ×16 | 4 | SDRAM | A[11:0] |
EMIFB | EMB_A[11:0] | |||
×32 | 4 | SDRAM | A[10:0] | |
EMIFB | EMB_A[10:0] | |||
128M bits | ×16 | 4 | SDRAM | A[11:0] |
EMIFB | EMB_A[11:0] | |||
×32 | 4 | SDRAM | A[11:0] | |
EMIFB | EMB_A[11:0] | |||
256M bits | ×16 | 4 | SDRAM | A[12:0] |
EMIFB | EMB_A[12:0] | |||
×32 | 4 | SDRAM | A[11:0] | |
EMIFB | EMB_A[11:0] | |||
512M bits | ×16 | 4 | SDRAM | A[12:0] |
EMIFB | EMB_A[12:0] | |||
×32 | 4 | SDRAM | A[12:0] | |
EMIFB | EMB_A[12:0] |
Table 6-23 is a list of the EMIFB registers.
BYTE ADDRESS | REGISTER NAME | REGISTER DESCRIPTION |
---|---|---|
0xB000 0000 | MIDR | Module ID Register |
0xB000 0008 | SDCFG | SDRAM Configuration Register |
0xB000 000C | SDRFC | SDRAM Refresh Control Register |
0xB000 0010 | SDTIM1 | SDRAM Timing Register 1 |
0xB000 0014 | SDTIM2 | SDRAM Timing Register 2 |
0xB000 001C | SDCFG2 | SDRAM Configuration 2 Register |
0xB000 0020 | BPRIO | Peripheral Bus Burst Priority Register |
0xB000 0040 | PC1 | Performance Counter 1 Register |
0xB000 0044 | PC2 | Performance Counter 2 Register |
0xB000 0048 | PCC | Performance Counter Configuration Register |
0xB000 004C | PCMRS | Performance Counter Master Region Select Register |
0xB000 0050 | PCT | Performance Counter Time Register |
0xB000 00C0 | IRR | Interrupt Raw Register |
0xB000 00C4 | IMR | Interrupt Mask Register |
0xB000 00C8 | IMSR | Interrupt Mask Set Register |
0xB000 00CC | IMCR | Interrupt Mask Clear Register |