mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 205

• Manufacturer Part Number: mcf5272
• Description: Mcf5272 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
In Table 9-11, the timing configuration is RTP = 61, RC = negligible, RCD = 1, RP = 1, and
CLT = 1.
In Table 9-12, the timing configuration is RTP = 61, RC = negligible, RCD = 0 (or 1),
RP = 1 (or 0), and CLT = 1.
Single-beat read
Single-beat write
Burst read
Burst write
Table 9-10. SDRAM Controller Performance, 32–Bit Port, (RCD = 0, RP = 0)
Table 9-11. SDRAM Controller Performance (RCD = 1, RP = 1), 16-Bit Port
Single-beat read
Single-beat
longword read
Single-beat write
Single-beat
longword write
Burst read
Burst write
SDRAM Access
SDRAM Access
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Chapter 9. SDRAM Controller
9
5
9-1
5-1
7
3
7-1
3-1
9-1-1-1-1-1-1-1 = 16 10-1-1-1-1-1-1-1 = 17
5-1-1-1-1-1-1-1 = 12 6-1-1-1-1-1-1-1 = 13
7-1-1-1-1-1-1-1 = 14 7-1-1-1-1-1-1-1 = 14
3-1-1-1-1-1-1-1 = 10 3-1-1-1-1-1-1-1 = 10
REG = 0, INV = 0
Number of System Clock Cycles
REG = 0, INV = 0
7-1-1-1 = 10
5-1-1-1 = 8
5-1-1-1 = 8
3-1-1-1 = 6
Number of System Clock Cycles
7
5
5
3
10
6
10-1
6-1
7
3
7-1
3-1
REG = 1, INV = 0
REG = 1, INV = 0
8-1-1-1 = 11
6-1-1-1 = 9
5-1-1-1 = 8
3-1-1-1 = 6
8
6
5
3
Performance
9-11