參數(shù)資料
型號(hào): M66307FP
廠商: Mitsubishi Electric Corporation
英文描述: LINE SCAN BUFFER with 16-BIT MPU BUS COMPATIBLE INPUTS
中文描述: 行掃描緩沖區(qū)的16位微處理器總線兼容的輸入
文件頁數(shù): 3/22頁
文件大?。?/td> 233K
代理商: M66307FP
MITSUBISHI
DIGITAL ASSP
M66307SP/FP
LINE SCAN BUFFER with 16-BIT MPU BUS COMPATIBLE INPUTS
3
polarity of “fixed data” that has been set by initialization.
(See Fig. 5.)
Send mode
After storing data in the write mode is completed, set to the send
mode. In this mode, the M66307 serially outputs the data stored in
the write mode according to the setting for the addition of the fixed
beginning data and the settings of LSB/MSB and LIFO/FIFO. While
the data is output, the M66307 outputs the Busy/Output Ready
signal (BUSY/ORDY).
When one line length of data is output, BUSY/ORDY is cleared and
an interrupt request signal (INTR) is output.
For the next line, restart from the setting in the write mode. If you
want to output the same data for one line, the same data can be
repetitively output without storing by using a transmit repeat request
command.
When you want to stop the M66307 in the middle of operation or
change some settings, use the stop command. The stop command
is valid in both write and send modes.
When operation is stopped, you can initialize the M66307 and repro-
gram the output specification, the length of fixed beginning data, and
number of DMA transfer words, When you do not
reprogram, the same settings before operation is stopped are
continued.
The following describes the operation of the M66307 using
the operation flowchart in Fig. 2. The M66307 has three
modes: “static mode”, “write mode”, and “send mode”.
In the static mode, the M66307 is in a standby state.
The M66307 remains in this mode until it is set to the write
mode by the operation mode setting command after reset
input or until it is set to the write mode after the (operation)
stop command is stored.
In the write mode, the M66307 stores up to 320 words of
data from the 16-bit system bus.
In the send mode, the M66307 serially outputs the data
stored in the write mode. The write and send modes are
set by the operation mode setting command.
Static mode
In the static mode, the M66307 is first initialized.
This initialization involves selecting
φ
IN or CLK IN, setting
the divide ratio when
φ
IN is selected, and specifying the
use of expansion/normal, data store by DMA cycle or MPU
cycle, presence of fixed beginning data of specified length added at
the beginning of data output, and the polarity (High or Low)
of the fixed data. Once the above is programmed, the
M66307 executes its functions according to the specification until
changed.
After the initialization is completed, the M66307 must be
programmed for the specification of output formats LSB/
MSB and LIFO/FIFO. In addition, when the “addition of
fixed data of specified length at the beginning of data out-
put” is specified in the initialization, the length of the fixed
beginning data must be programmed; similarly, when “data store
by DMA cycle” is specified, the number of words per line
transferred via DMA must be programmed. Once program-
med, the specified format is continued until it is changed.
The initialization and these settings can only be made in
the static mode. When you want to change the specification
in the middle of operation, place the M66307 in the static mode
using the stop command and reprogram the setting. When
initializing the device and setting the output format after rest input, if
your setting is the same as the default value, programming may be
omitted. (See note 1 in Fig. 4.)
When the above settings are completed, the M66307 is
ready for data transfer from the system bus to peripheral
equipment.
Write mode
When settings in the static mode are completed, set to the
write mode. In this mode, signals for write to internal memory are
enabled, and data is stored in the internal memory at each write
cycle executed by the MPU or DMA controller.
When storing one line of fixed data, note that once the
word length per line is stored as a command, the M66307
operates in the same way as one line of fixed data is
stored.
In the write mode, data output (DATA OUT) outputs the
相關(guān)PDF資料
PDF描述
M66307SP LINE SCAN BUFFER with 16-BIT MPU BUS COMPATIBLE INPUTS
M66312FP 16-BIT LED DRIVER WITH SHIFT REGISTER AND LATCHED 3-STATE OUTPUTS
M66312P 16-BIT LED DRIVER WITH SHIFT REGISTER AND LATCHED 3-STATE OUTPUTS
M66313FP 32-BIT LED DRIVER WITH SHIFT REGISTER AND LATCH
M66313 32-BIT LED DRIVER WITH SHIFT REGISTER AND LATCH
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M66307SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:LINE SCAN BUFFER with 16-BIT MPU BUS COMPATIBLE INPUTS
M66310FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT LED DRIVER WITH SHIFT REGISTER AND LATCH
M66310P 制造商:Panasonic Industrial Company 功能描述:IC
M66311FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-Bit LED Driver with Shift Register and Latch
M66311P 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT LED DRIVER WITH SHIFT REGISTER AND LATCH