S5PC110_UM
1 DRAM CONTROLLER
1-3
1.2 FUNCTIONAL DESCRIPTION
1.2.1 INITIALIZATION
An Initialization procedure consists of PHY DLL initialization, setting controller register and memory initialization.
For memory initialization, refer to JEDEC specifications and data sheets of memory devices. There are three
different memory types, namely, LPDDR, LPDDR2, and DDR2. According to the memory types, initialization
sequences are as follows.
1.2.1.1 LPDDR
Initialization sequence for LPDDR memory type:
1. To provide stable power for controller and memory device, the controller must assert and hold CKE to a logic
high level. Then apply stable clock.
Note:
XDDR2SEL should be Low level to hold CKE to high.
2. Set
the
PhyControl0.ctrl_start_point
and
PhyControl0.ctrl_inc
bit-fields to correct value according to clock
frequency. Set the PhyControl0.ctrl_dll_on bit-field to ‘1’ to activate the PHY DLL.
3. DQS Cleaning: Set the
PhyControl1.ctrl_shiftc
and
PhyControl1.ctrl_offsetc
bit-fields to the correct value
according to clock frequency and memory tAC parameters.
4. Set
the
PhyControl0
.
ctrl_start
bit-field to ‘1’.
5. Set
the
ConControl
. At this moment, an auto refresh counter should be off.
6. Set
the
MemControl
. At this moment, all power down modes should be off.
7. Set
the
MemConfig0
register. If there are two external memory chips, also set the
MemConfig1
register.
8. Set
the
PrechConfig
and
PwrdnConfig
registers.
9. Set
the
TimingAref
,
TimingRow, TimingData
and TimingPower
registers according to memory AC
parameters.
10. If QoS scheme is required, set the
QosControl0~15
and
QosConfig0~15
registers.
11 Wait for the PhyStatus0.ctrl_locked bit-fields to change to ‘1’. Check whether PHY DLL is locked.
12. PHY DLL compensates the changes of delay amount caused by Process, Voltage and Temperature (PVT)
variation during memory operation. Therefore, it should not be off for reliable operation. PHY DLL can be off if
frequency is low. If off mode is used, set the
PhyControl0.ctrl_force
bit-field to the correct value according to
the
PhyStatus0.ctrl_lock_value[9:2]
bit-field for fix delay amount. Clear the
PhyControl0.ctrl_dll_on
bit-
field to turn off PHY DLL.
13. Confirm whether stable clock issues minimum 200us after power on
14. Issue a
PALL
command using the
DirectCmd
register.
15. Issue two
Auto Refresh
commands using the
DirectCmd
register.
16. Issue a
MRS
command using the
DirectCmd
register to program the operating parameters.
Summary of Contents for S5PC110
Page 4: ...Section 1 OVERVIEW ...
Page 28: ...Section 2 SYSTEM ...
Page 374: ...S5PC110_UM 4 POWER MANAGEMENT 4 14 4 Let DRAMs exit from self refresh mode ...
Page 473: ...S5PC110_UM 6 BOOTING SEQUENCE 6 10 Figure 6 3 Secure Booting Diagram ...
Page 474: ...Section 3 BUS ...
Page 491: ...S5PC110_UM 2 CORESIGHT Figure 2 4 Structure of the Coresight DAP Components 2 8 ...
Page 506: ...Section 4 INTERRUPT ...
Page 537: ...Section 5 MEMORY ...
Page 540: ......
Page 703: ...Section 6 DMA ...
Page 705: ...List of Figures Figure Title Page Number Number Figure 1 1 Two DMA Tops 1 1 ...
Page 737: ...Section 7 TIMER ...
Page 795: ...Section 8 CONNECTIVITY STORAGE ...
Page 883: ...S5PC110_UM 5 USB2 0 HS OTG 5 7 5 6 3 OTG FIFO ADDRESS MAPPING Figure 5 3 OTG FIFO Mapping ...
Page 1100: ...Section 9 MULTIMEDIA ...
Page 1116: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 5 Figure 1 2 Block Diagram of the Data Flow ...
Page 1125: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 14 1 3 3 2 7 16BPP Display 1555 P1 P2 P3 P4 P5 LCD Panel ...
Page 1145: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 34 Figure 1 10 Blending Decision Diagram ...
Page 1149: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 38 Figure 1 14 Hue Control Block Diagram ...
Page 1184: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 73 ...
Page 1226: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 115 ...
Page 1328: ...S5PC110_UM 2 1BCAMERA INTERFACE 2 81 ...
Page 1369: ...S5PC110_UM 4 3BMIPI CSIS 4 2 4 2 BLOCK DIAGRAM Figure 4 1 MIPI CSI System Block Diagram ...
Page 1381: ...S5PC110_UM 4 3BMIPI CSIS 4 14 ...
Page 1431: ...S5PC110_UM 6 5BMULTI FORMAT CODEC 6 39 ...
Page 1471: ...S5PC110_UM 6 5BMULTI FORMAT CODEC 6 79 Figure 6 7 VC1 Parameters ...
Page 1626: ...S5PC110_UM 10 9BHIGH DEFINITION MULTIMEDIA INTERFACE 10 17 Figure 10 10 Channel Status Block ...
Page 1775: ...S5PC110_UM 13 12BG2D 13 6 FIMG 2D FIMG 2D FIMG 2D Figure 13 3 Rotation and Flip Example ...
Page 1798: ...Section 10 AUDIO ETC ...
Page 1803: ...S5PC110_UM 1 AUDIO SUBSYSTEM 1 2 Figure 8 7 Keypad I F Block Diagram 8 8 ...
Page 1951: ...Section 11 SECURITY ...
Page 1954: ...List of Tables Table Title Page Number Number Table 1 1 Security Features of S5PC110 1 2 ...
Page 1964: ...S5PC110_UM 2 ADVANCED CRYPTO ENGINE Figure 2 9 DES Byte Swapping Scheme 2 9 ...
Page 2005: ...Section 12 ETC ...
Page 2039: ...Section 13 SIZE BALL MAP ...