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參數(shù)資料
| 型號(hào)： | HCD66712UA02 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dot-Matrix Liquid Crystal Display Controller/Driver |
| 中文描述： | 點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 39/88頁 |
| 文件大?。?/td> | 662K |
| 代理商： | HCD66712UA02 |
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HD66712U
402
Transmitting (read)
After receiving the start synchronization bits, the R/
:
bit (= 1), and the RS bit with the start byte, 8-
bit read data is transmitted in the same way as receiving. When read data is continuously transmitted
with R/
:
bit and RS bit unchanged, continuous transfer is possible (see “Continuous Transfer”
below).
Even at the time of the transmission (the data output), since the HD66712 monitors the start
synchronization bit string (“11111”) by the SID input, the HD66712 receives the R/W bit and RS bit
after detecting the start synchronization. Therefore, in the case of a continuous transfer, fix the SID
input “0.”
Continuous transfer
When instructions are continuously received with the R/
:
bit and RS bit unchanged, continuous
receive is possible without inserting a start byte between instructions.
After receiving the last bit (the 8th bit in the 2nd byte) of an instruction, the system begins to execute
it.
To execute the next instruction, the instruction execution time of the HD66712 must be considered. If
the last bit (the 8th bit in the 2nd byte) of the next instruction is received during execution of the
previous instruction, the instruction will be ignored.
In addition, if the next unit of data is read before read execution of previous data is completed for
busy flag/address counter/RAM data, normal data is not sent. To transfer data normally, the busy flag
must be checked. However, it is possible to transfer without reading the busy flag if wiring for
transmission (SOD pin) needs to be reduced or if the burden of polling on the MPU needs to be
removed. In this case, insert a transfer wait so that the current instruction first completes execution
during instruction transfer.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCD66712UA03 | Dot-Matrix Liquid Crystal Display Controller/Driver |
| HCD66712UA03BP | Dot-Matrix Liquid Crystal Display Controller/Driver |
| HCD66717A13BP | TRANSISTOR,BJT,NPN,700V V(BR)CEO,8A I(C),TO-247VAR |
| HCD66717A03 | (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver) |
| HCD66717A03BP | (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCD66712UA03 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver |
| HCD66712UA03BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver |
| HCD66717A03 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver) |
| HCD66717A03BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver) |
| HCD66717A13BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver) |
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