No. 20S071-01 
 
 
 
 
 
 
STC-HD213DV / STC-HD213DV-CS / STC-HD213SDI / STC-HD213SDI-CS / 
STC-HD213DVN / STC-HD213DVN-CS / STC-HD213SDIN / STC-HD213SDIN-CS 
Product Specifications and User
91/94 
 
8.6  OSCD (On Screen Character Display) Command 
 
  2 Byte Command 
 
Note: The data have to send as follow order D15-D8, D7-D0. 
 
Function  D15
D14
D13
D12
D11
D10
D9  D8  D7  D6  D5  D4  D3  D2  D1  D0 
Video RAM Batch 
Clear Command 
0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0 
Display Control 
Command 
0  0  0  0  1  0  0  0  DO
0  FC
FA  0  0  BL1
BL0
Character Size   
Control Command
0  0  0  1  0  1  V4  V3  V2  V1  V0  H4  H3  H2  H1  H0 
Write Address   
Control Command
0  0  0  1  1  1  0  AD8
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
Character Size   
Control Command
0  0  1  0  0  0  SV1
SV0
SH1
SH0
0  0  AR3
AR2
AR1
AR0
 
Video RAM Batch Clear Command 
Clear the all character data (12Lines 28digits) on Video RAM. 
Display, Framing color , Framing, Blinking, Frame Color and character size wii set as default (00H) on all lines. 
 
Display Control Command 
DO: Display    (0:Display ON, 1:Display OFF) 
FC: Frame color    (0:Black, 1:White) 
FA: Framing    (0:ON, 1:OFF) 
BL1, BL0: Blinking Frequency   
(00: Blinking OFF, 01: Blinking Frequency approximately 2 Hz, 02: Blinking Frequency approximately 1 Hz,   
03: Blinking Frequency approximately 0.5 Hz) 
 
Character Size Control Command 
Sets the start position. 32 steps / 8 dots unit on horizontal.    32 steps / 4 lines unit on vertical. 
H4, H3, H2, H1, H0: 8 dots unit (0 to 31) 
V4, V3, V2, V1, V0: 4 lines unit (0 to 31) 
 
Write Address Control Command 
AD8, AD7, AD6, AD5, AD4, AD3, AD2, AD1, AD0: Address (0 to 335) 
Sets the address to write character.   
The address consists of RAW 0 (Column 0 to 27), RAW 1 (Column 56 to 83) … RAW11 (Column 308 to 335). 
 
Character Size Control Command 
Sets the character size for each row. 
SV1, SV0: Size on Vertical      (00: x1, 01: x2, 02: x3, 03: x4) 
SH1, SH0: Size on Horizontal    (00: x1, 01: x2, 02: x3, 03: x4) 
AR3, AR2, AR1, AR0: Number of row  (0 to 11)