參數(shù)資料
型號(hào): HM530281RTT-34
廠商: Hitachi,Ltd.
英文描述: 331,776-word x 8-bit Frame Memory
中文描述: 331776字× 8位幀存儲(chǔ)器
文件頁數(shù): 14/47頁
文件大?。?/td> 311K
代理商: HM530281RTT-34
Datasheet Title
14
Window Scan (independent functions for read and write)
The window scan function can be used with either the 2 dimensional (1) or (2) addressing modes, and is a
function which scans a rectangular region with an arbitrary starting point. The jump address setup function
(see Jump address setup above) is used to specify the starting point
Initiating window scan:
The window scan function is started by setting
WWND
to low for read or
RWND
low for write, and executing a read or write jump operation (see Jump operation above). Window
scan will start immediately from that cycle.
Window scan operation:
When the window scan function is started, one of the functions described below
will be executed independently for read and write.
*11
Also note that as long as the interval conditions listed
in Notes 7 to 9 are met, these operations can be executed at arbitrary dots without regard for the address
block organization.
Clearing window scan:
The window scan function is turned off either by executing a reset or jump with
R WND
(for read) or
WWND
(for write) set high, or by executing the clear operation described in section
Clear below. Note that both setting and clearing window scan mode are executed independently of
OE
and
WE
.
(See ‘Notes on usage’ 14 and 15 on the operation when clock gate signal (
CGW
,
CGR
) is high.)
Operation
Address Pointer Control
Reset
Reset to the first dot at the start of the window.
Line increment
Reset to the first dot at the left edge of the window on the next line.
Line hold
Reset to the first dot at the left edge of the window on the current line.
相關(guān)PDF資料
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HM530281RTT-45 331,776-word x 8-bit Frame Memory
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HM530281TT-25 331,776 WORD X 8 BIT FRAME MEMORY
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HM530281RTT-45 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:331,776-word x 8-bit Frame Memory
HM530281TT 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:331,776 WORD X 8 BIT FRAME MEMORY
HM530281TT-20 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:331,776 WORD X 8 BIT FRAME MEMORY
HM530281TT-25 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:331,776 WORD X 8 BIT FRAME MEMORY
HM530281TT-34 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:331,776 WORD X 8 BIT FRAME MEMORY