參數(shù)資料
型號: HD66732
廠商: Hitachi,Ltd.
英文描述: Graphics Liquid Crystal Display Controller/Driver Supporting JIS Level-1 and Level-2 Kanji ROM(圖形LCD控制器/驅動器)
中文描述: 圖形液晶顯示控制器/驅動器支持日標級- 1和第2級漢字光盤(圖形液晶顯示控制器/驅動器)
文件頁數(shù): 41/133頁
文件大?。?/td> 2608K
代理商: HD66732
HD66732
41
Instruction Registers
Outline
The HD66732 consists of the following five types of register:
Index register (IR): Selects control registers, RAM addresses, or data registers
Status register (SR): Reads the internal state or key scan data
Control registers (R0–RC): Set the display control or key scan control
RAM address registers (RD and RE): Select RAMs and set RAM addresses
RAM data register (RF): Receives the write and read data for the RAM
Normally, instructions that transfer display data are used the most. However, auto-incrementation by 1 (or
auto-decrementation by 1) of internal HD66732 RAM addresses after each data write can reduce the MPU
program load.
Because instructions other than the clear-display instruction are executed in 0 cycles, instructions can be
written in succession.
While the clear-display instruction is being executed for internal operation, or during reset, no instruction
other than the SR read instruction can be executed.
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