18.4.7 DDR3PHY PHY Timing Register 1

Name: DDR3PHY_PTR1
Offset: 0x1C
Reset: 0x0604111D
Property: Read/Write

Bit 3130292827262524 
      TDINIT1[7:5] 
Access R/WR/WR/W 
Reset 110 
Bit 2322212019181716 
 TDINIT1[4:0]TDINIT0[18:16] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000100 
Bit 15141312111098 
 TDINIT0[15:8] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00010001 
Bit 76543210 
 TDINIT0[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00011101 

Bits 26:19 – TDINIT1[7:0] DRAM Initialization Time 1

DRAM initialization time corresponding to the following:

DDR3 = DDR_CKE high time to first command (tRFC +10 ns or 5 DDR_CLK periods, whichever value is larger)

DDR2 = DDR_CKE high time to first command (400 ns)

LPDDR2 = DDR_CKE low time with power and clock stable (100 ns)

LPDDR3 = CKE low time with power and clock stable (100 ns)

Default value corresponds to DDR3 360 ns at 533 MHz

Bits 18:0 – TDINIT0[18:0] DRAM Initialization Time 0

DRAM initialization time corresponding to the following:

DDR3 = DDR_CKE low time with power and clock stable (500 µs)

DDR2 = DDR_CKE low time with power and clock stable (200 µs)

LPDDR2 = DDR_CKE high time to first command (200 µs)

LPDDR3 = DDR_CKE high time to first command (200 µs)

Default value corresponds to DDR3 500 µs at 533 MHz.