SPFD54124B Drise, SPFD54124B Datasheet - Page 51

• Manufacturer Part Number: SPFD54124B
• Description: 396-Channel 6-Bit Source Driver
• Manufacturer: Drise

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6.2.24. RAMHD (2Eh): Memory Read
NOTE: “-” Don’t care, can be set to VDDIO or DGND level
© ORISE Technology Co., Ltd.
Proprietary & Confidential
(N+1)
Description
Restriction
Availability
Flow Chart
Register
2
1
Default
nd
st
Inst / Para
RAMHD
Parameter
Parameter
th
2EH
Parameter
∣
-This command is used to transfer data from frame memory to MCU.
-This command makes no change to the other driver status.
-When this command is accepted, the column register and the row register are reset to the Start Column/Start Row
-The Start Column/Start Row positions are different in accordance with MADCTR setting.
-Frame Read can be canceled by sending any other command.
-In all color modes, the Frame Read is always 18-bits and there is no restriction on length of parameters.
-Memory read is only possible via the SPI and parallel interface.
positions.
Normal Mode On, Idle Mode On, Sleep Out
Normal Mode On, Idle Mode Off, Sleep Out
Partial Mode On, Idle Mode Off, Sleep Out
Partial Mode On, Idle Mode On, Sleep Out
D/CX
0
1
1
1
1
WRX
D1[17:0],D2[17:0]…Dn[17:0]
Power On Sequence
↑
1
1
1
1
Dummy Read
H/W Reset
S/W Reset
Sleep In
Any Command
RAMRD (2Eh)
RDX
Status
Status
Image Data
↑
↑
↑
↑
1
D17-8
D17-8
D17-8
∣
-
-
D7
D7
D7
∣
0
-
RAMHD (Memory Read)
D6
D6
D6
∣
0
-
51
D5
D5
D5
∣
1
-
Contents of memory is set randomly
Contents of memory is not cleared
Contents of memory is not cleared
D4
D4
D4
∣
0
-
Default Value
Availability
Yes
Yes
Yes
Yes
Yes
D3
D3
D3
∣
1
-
D2
D2
D2
∣
1
-
Sequential
Parameter
Command
Legend
transfer
SPFD54124B
Display
Action
Mode
Preliminary
D1
D1
D1
∣
1
-
Preliminary Version: 0.6
D0
D0
D0
∣
0
-
APR. 26, 2007
(Code)
(2Eh)
∣
-
-
-