Setting Of Commands - Samsung S5PC110 Manual

S5PC110_UM

1.3.9 SETTING OF COMMANDS

1.3.9.1 Auto Command
If 0x1 (index), 0x32, 0x2 (index), 0x8f, 0x4 (index), or 0x99 are required to be sent to LDI at every 10 frames, the
following steps are recommended:
• LDI_CMD0 ← 0x1, LDI_CMD1 ← 0x32, LDI_CMD2 ← 0x2,
• LDI_CMD3 ← 0x8f, LDI_CMD4 ← 0x4, LDI_CMD5 ← 0x99
• CMD0_EN ← 0x2, CMD1_EN ← 0x2, CMD2_EN ← 0x2,
• CMD3_EN ← 0x2, CMD4_EN ← 0x2, CMD5_EN ← 0x2
• CMD0_RS ← 0x1, CMD1_RS ← 0x0, CMD2_RS ← 0x1,
• CMD3_RS ← 0x0, CMD4_RS ← 0x1, CMD5_RS ← 0x0
• AUTO_CMD_RATE ← 0x5
NOTE:
1. For checking RS polarity, refer to your LDI specification.
2. It is not required to pack LDI_CMD from LDI_CMD0 to LDI_CMD11 contiguously. For example, it is only possible to
use LDI_CMD0, LDI_CMD3, and LDI_CMD11.
3. Maximum 12 auto commands are available.
1.3.9.2 Normal Command
To execute Normal command, follow these steps:
Put commands into LDI_CMD0 ~ 11 (maximum 12 commands).
Set CMDx_EN in LDI_CMDCON0 to enable normal command x (For example, if you want to enable command 4,
you have to set CMD4_EN to 0x01).
Set NORMAL_CMD_ST in I80IFCONB0/1.
The display controller has the following characteristics for command operations:
•
Auto/ Normal/ Auto and Normal command mode is possible for each of the 12 commands.
•
Sends 12 maximum commands between frames in its normal operation (Normal operation means ENVID=1
and video data is displayed in LCD panel).
• Issues commands in the order of CMD0 → CMD1 → CMD2 → CMD3 → ... → CMD10 → CMD11.
•
Skips disabled commands (CMDx_EN = 0x0).
−
Sends over 12 commands (Possible in Normal command and system initialization).
−
Set 12 LDI_CMDx, CMDx_EN, and CMDx_RS.
−
Set NORMAL_CMD_ST.
−
Read NORMAL_CMD_ST with polling. If 0, go to NORMAL_CMD_ST setting.
1 0BDISPLAY CONTROLLER
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