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# PCEngines 2Gb 1333

# SPD contents for APU 2GB DDR3 NO ECC (1333MHz PC1333) soldered down
#  0 Number of SPD Bytes used / Total SPD Size / CRC Coverage
#    bits[3:0]: 1 = 128 SPD Bytes Used
#    bits[6:4]: 1 = 256 SPD Bytes Total
#    bit7 : 0 = CRC covers bytes 0 ~ 128
01

#	1 SPD Revision
#    0x13 = Revision 1.3
13

#	2 Key Byte / DRAM Device Type
#		bits[7:0]: 0x0b = DDR3 SDRAM
0B

#  3 Key Byte / Module Type
#    bits[3:0]: 3 = SO-DIMM
#    bits[3:0]: 8 = 72b-SO-DIMM
#    bits[7:4]:     reserved
03

#	4 SDRAM CHIP Density and Banks
#		bits[3:0]: 3 = 2 Gigabits Total SDRAM capacity per chip
#		bits[3:0]: 4 = 4 Gigabits Total SDRAM capacity per chip
#		bits[6:4]: 0 = 3 (8 banks)
#		bit7 : reserved
03

#  5 SDRAM Addressing
#    bits[2:0]: 1 = 10 Column Address Bits
#    bits[5:3]: 4 = 16 Row Address Bits
#    bits[5:3]: 3 = 15 Row Address Bits
#    bits[5:3]: 2 = 14 Row Address Bits
#    bits[7:6]:     reserved
19

#	6 Module Nominal Voltage, VDD
#		bit0 : 0 = 1.5 V operable
#		bit1 : 0 = NOT 1.35 V operable
#		bit2 : 0 = NOT 1.25 V operable
#		bits[7:3]: reserved
00

#	7 Module Organization
#    	bits[2:0]: 1 = 8 bits
#		bits[2:0]: 2 = 16 bits
#		bits[5:3]: 0 = 1 Rank
#		bits[7:6]: reserved
01

#	8 Module Memory Bus Width
#		bits[2:0]: 3 = Primary bus width is 64 bits
#		bits[4:3]: 0 = 0 bits (no bus width extension)
#               bits[4:3]: 1 = 8 bits (for ECC)
#		bits[7:5]: reserved
03

#	9 Fine Timebase (FTB) Dividend / Divisor
#		bits[3:0]: 0x02 divisor
#		bits[7:4]: 0x05 dividend
#		5 / 2 = 2.5ps
52

# 10 Medium Timebase (MTB) Dividend
# 11 Medium Timebase (MTB) Divisor
#    1 / 8 = .125 ns
01 08

#	12 SDRAM Minimum Cycle Time (tCKmin)
#		0x0a = tCKmin of 1.25 ns = DDR3-1600 (800 MHz clock)
#		0x0c = tCKmin of 1.5 ns  = DDR3-1333 (667 MHz clock)
#    0x0c  = tCKmin of 1.5 ns = in multiples of MTB
0C

#	13 Reserved
00

#	14 CAS Latencies Supported, Least Significant Byte
#	15 CAS Latencies Supported, Most Significant Byte
#		Cas Latencies of 11 - 5 are supported
7E 00

#	16 Minimum CAS Latency Time (tAAmin)
#    0x6C = 13.5ns - DDR3-1333
#    0x69 = 13.125 ns - DDR3-1333
69

#	17 Minimum Write Recovery Time (tWRmin)
#		0x78 = tWR of 15ns - All DDR3 speed grades
78

#	18 Minimum RAS# to CAS# Delay Time (tRCDmin)
#    0x6E = 13.5ns -  DDR3-1333
#    0x69 = 13.125 ns - DDR3-1333
69

#	19 Minimum Row Active to Row Active Delay Time (tRRDmin)
#		0x30 = 6.0ns
#		0x38 = 7.0ns
#		0x3C = 7.5ns
30

# 20 Minimum Row Precharge Delay Time (tRPmin)
#    0x6C = 13.5ns -  
#    0x69 = 13.125 ns - DDR3-1333
69

#	21 Upper Nibbles for tRAS and tRC
#		bits[3:0]: tRAS most significant nibble = 1 (see byte 22)
#		bits[7:4]: tRC most significant nibble = 1 (see byte 23)
11

#	22 Minimum Active to Precharge Delay Time (tRASmin), LSB
#    0x120 = 36ns - DDR3-1333 (see byte 21)
#		0x120 = 36ns - DDR3
20

#	23 Minimum Active to Active/Refresh Delay Time (tRCmin), LSB
#    0x289 = 49.125ns - DDR3-1333
89

# 24 Minimum Refresh Recovery Delay Time (tRFCmin), LSB
# 25 Minimum Refresh Recovery Delay Time (tRFCmin), MSB
#   0x500 = 160ns - for 2 Gigabit chips
#   0x820 = 260ns - for 4 Gigabit chips
00 05

#	26 Minimum Internal Write to Read Command Delay Time (tWTRmin)
#		0x3c = 7.5 ns - All DDR3 SDRAM speed bins
3C

#	27 Minimum Internal Read to Precharge Command Delay Time (tRTPmin)
#		0x3c = 7.5ns - All DDR3 SDRAM speed bins
3C

#	28 Upper Nibble for tFAWmin
#	29 Minimum Four Activate Window Delay Time (tFAWmin)
#    0x00F0 = 30ns -  DDR3-1333, 1 KB page size
00 F0

#	30 SDRAM Optional Feature
#		bit0 : 1= RZQ/6 supported
#		bit1 : 1 = RZQ/7 supported
#		bits[6:2]: reserved
#		bit7 : 1 = DLL Off mode supported
83

#	31 SDRAM Thermal and Refresh Options
#		bit0 : 1 = Temp up to 95c supported
#		bit1 : 0 = 85-95c uses 2x refresh rate
#		bit2 : 1 = Auto Self Refresh supported
#    bit3     : 0 = no on die thermal sensor
#		bits[6:4]: reserved
#    bit7     : 0 = partial self refresh supported
01

#	32 Module Thermal Sensor
#		0 = Thermal sensor not incorporated onto this assembly
00

#	33 SDRAM Device Type
#		bits[1:0]: 0 = Signal Loading not specified
#		bits[3:2]: reserved
#		bits[6:4]: 0 = Die count not specified
#		bit7 : 0 = Standard Monolithic DRAM Device
00

#	34 Fine Offset for SDRAM Minimum Cycle Time (tCKmin)
00

#	35 Fine Offset for Minimum CAS Latency Time (tAAmin)
00

#	36 Fine Offset for Minimum RAS# to CAS# Delay Time (tRCDmin)
00

#	37 Fine Offset for Minimum Row Precharge Delay Time (tRPmin)
00

#	38 Fine Offset for Minimum Active to Active/Refresh Delay (tRCmin)
00

#      39  40 (reserved)
00 00

# 41 tMAW, MAC
# 8K*tREFI / 200k
86

#      42 - 47 (reserved)
00 00 00 00 00 00 

#	48 - 55 (reserved)
00 00 00 00 00 00 00 00

#	56 - 59 (reserved)
00 00 00 00

#	60 Raw Card Extension, Module Nominal Height
#		bits[4:0]: 0 = <= 15mm tall
#		bits[7:5]: 0 = raw card revision 0-3
00

#	61 Module Maximum Thickness
#		bits[3:0]: 0 = thickness front <= 1mm
#		bits[7:4]: 0 = thinkness back <= 1mm
00

#      62 Reference Raw Card Used
#              bits[4:0]: 0 = Reference Raw card A used
#              bits[6:5]: 0 = revision 0
#              bit7 : 0 = Reference raw cards A through AL
# 			   revision B4 
61

#	63 Address Mapping from Edge Connector to DRAM
#		bit0 : 0 = standard mapping (not mirrored)
#		bits[7:1]: reserved
00

#	64 - 71 (reserved)
00 00 00 00 00 00 00 00

#	72 - 79 (reserved)
00 00 00 00 00 00 00 00

#	80 - 87 (reserved)
00 00 00 00 00 00 00 00

#	88 - 95 (reserved)
00 00 00 00 00 00 00 00

#	96 - 103 (reserved)
00 00 00 00 00 00 00 00

#	104 - 111 (reserved)
00 00 00 00 00 00 00 00

#	112 - 116 (reserved)
00 00 00 00 00

#	117 - 118 Module ID: Module Manufacturers JEDEC ID Code
#           0x0001 = AMD
00 01

#	119 Module ID: Module Manufacturing Location - OEM specified
00

#	120 Module ID: Module Manufacture Year in BCD
#		0x15 = 2015
15

#	121 Module ID: Module Manufacture week
#		0x44 = 44th week
44

#	122 - 125: Module Serial Number
00 00 00 00

#	126 - 127: Cyclical Redundancy Code
b6 73