SSD2119 Crystalfontz America, Inc.,, SSD2119 Datasheet - Page 56

• Manufacturer Part Number: SSD2119
• Description: 320 Rgb X 240 Tft Lcd Driver Integrated Power Circuit, Source And Gate Driver And Ram
• Manufacturer: Crystalfontz America, Inc.,

Analogue Setting (R26h) (POR = 7000h)
RW_T (RAM read/write timing)
VCB (VCOM buffer)
RTLM (RAM read/write monitoring)
ENN (enable deep sleep mode of ram)
Suggested Code for R26H is x3800.
Vcom OTP (R28h – R29h)
When OTP is access, these registers must be set accordantly.
OTP programming sequence
Reg# R/W
R28h
R29h
R/W
W
Solomon Systech
POR*
DC
1
W
W
RW_T=0 : ON Wordline after Bitlines Pre-charge OFF
RW_T=1 : ON Wordline before Bitlines Pre-charge OFF(por)
RTLM=1: RAM read/write monitoring ON (por)
RTLM=0: RAM read/write monitoring OFF
ENN=1 : stop precharge bitlines in sleep mode
ENN=0 : always precharge bitlines (por)
VCB=1 : VCOML buffer off during VCOM output VCOMH (por)
VCB=0: VCOML buffer on even VCOM output VCOMH
IB15 IB14 IB13 IB12 IB11
Step
DC
0
0
1
1
1
2
3
4
5
6
7
8
RW_T VCB RTLM ENN
IB15 IB14 IB13 IB12 IB11 IB10
1
0
1
Power up the module with VCI and VDDIO set to customer application
input voltage
Turn on the display as normal to 65k/262k color mode (displaying a test
pattern if any).
Set nOTP to “1” (R1Eh) and optimizes VcomH by adjusting VCM[5:0]
(R1Eh).
Apply Display off sequence (Section 16.2)
Power up the module with VCI and VDDIO set to customer application
input voltage
Turn on the display as normal to 65k/262k color mode
Write below commands for OTP initialization and wait for 200ms for
activate the OTP :
Connect a
a current limiting resistor, see figure below.
Write the optimized value found in Step 2 to VCM[5:0] (R1Eh) and set
nOTP to “1”.
Fire the OTP by write HEX code “000Ah” to register R28h.
Wait 500ms.
1
0
0
1
0
0
15.0V (Range of Vpp=14.5V-15.0V)
1000
1010
1100
1110
0
0
0
IB10
0
0
0
0
Index
R00h
R28h
R29h
IB9
0
0
0
0
380K
413K
443K
472K
Operation
IB9
IB8
0
0
0
0
IB8
IB7
0
0
0
0
0x80C0
0x0001
0x0006
Value
IB7
IB6
0
1
0
0
supply to VGH through
IB6
Jun 2009 P 56/95
65
70
75
80
0
1
IB5
0
0
IB5
IB4
0
0
0
0
IB4
IB3
0
0
0
0
IB3
Rev 1.4
IB2
0
0
0
0
IB2
IB1
1
0
0
0
SSD2119
IB1
IB0
1
0
0
0
IB0
0
0