參數(shù)資料
型號(hào): HYB39S13620TQ-
廠商: SIEMENS AG
英文描述: 128 x 64 pixel format, LED Backlight available
中文描述: 特別模式寄存器雙色登記突發(fā)讀單寫(xiě)操作
文件頁(yè)數(shù): 15/70頁(yè)
文件大?。?/td> 563K
代理商: HYB39S13620TQ-
HYB 39S16320TQ-6/-7/-8
Semiconductor Group
15
1998-10-01
Special Mode Register Functions
Note: If only one Color Register is in use, A7 is Don’t Care.
Special Mode Register Naming Conventions
Device Deselect (INHBT)
The device deselect or inhibit function prevents commands from being executed by the SGRAM,
regardless of whether the CLK signal is enabled. The device is effectively deactivated (CS is high).
No Operation (NOP)
The NOP command is used to perform a no operation to an SGRAM which is selected (CS is low).
This prevents unwanted commands being registered during idle or wait states. The execution of the
command(s) already in progress will not be affected.
Load Mode Register (LMR)
The Mode Register is loaded via address input pins A9 - A0 . The LMR command can only be issued
when both banks are idle, and a subsequent executable command can not be issued until 2 CLK
cycle Latency is met.
Load Special Mode Register (LSMR)
LSMR command is used to load either the Color Register(s) or the Mask Register at a time. The
control information is provided on inputs A9 - A0, while the data for the Color or Mask Register is
provided on the DQs. The LSMR command can be issued when both banks are idle, or one or both
are active but with no Read, Write or Block Write accesses in progress.
Address Bits
Functions
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
0
0
0
0
1
0
0
0
0
0
Load Mask Register
0
0
0
1
0
0
0
0
0
0
Load Color Register 0
0
0
1
1
0
0
0
0
0
0
Load Color Register 1
Address bit name
Special name
Function
A5
LM
Load Mask Enable
A6
LC
Load Color Enable
A7
SCR
Select Color Register
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