Chapter 10 Memory Subsystem.pdf

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General-Purpose Memory Controller www.ti.com
• Repeat with buffer 0 to S-1
– 512-byte data, processing ON
• One time with buffer 0
– size0 nibbles spare, processing ON
• Repeat with buffer 0 to S-1
– size1 nibbles spare, processing ON
Checksum: Spare area size (nibbles) = size0 + (S - size1)
10.1.5.14.3.2.2.9 Mode 0x7
Page processing sequence:
• Repeat with buffer 0 to S-1
– 512-byte data, processing ON
• One time with buffer 0
– size0 nibbles spare, processing ON
• Repeat S times (no buffer used)
– size1 nibbles spare, processing OFF
Checksum: Spare area size (nibbles) = size0 + (S - size1)
10.1.5.14.3.2.2.10 Mode 0x8
Page processing sequence:
• Repeat with buffer 0 to S-1
– 512-byte data, processing ON
• One time with buffer 0
– size0 nibbles spare, processing ON
• Repeat with buffer 0 to S-1
– 1 nibble padding spare, processing OFF
– size1 nibbles spare, processing ON
Checksum: Spare area size (nibbles) = size0 + (S - (1+size1))
10.1.5.14.3.2.2.11 Mode 0x4
Page processing sequence:
• Repeat with buffer 0 to S-1
– 512-byte data, processing ON
• One time (no buffer used)
– size0 nibbles spare, processing OFF
• Repeat with buffer 0 to S-1
– size1 nibbles spare, processing ON
Checksum: Spare area size (nibbles) = size0 + (S - size1)
10.1.5.14.3.2.2.12 Mode 0x9
Page processing sequence:
• Repeat with buffer 0 to S-1
– 512-byte data, processing ON
• One time (no buffer used)
– size0 nibbles spare, processing OFF
• Repeat with buffer 0 to S-1
2156 Memory Subsystem SPRUGN4L–May 2010–Revised June 2011
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