- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98005 > M37221M6-XXXSP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42 PDF資料下載
參數(shù)資料
| 型號： | M37221M6-XXXSP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42 |
| 封裝： | 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42 |
| 文件頁數(shù)： | 41/62頁 |
| 文件大?。?/td> | 1180K |
| 代理商： | M37221M6-XXXSP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁當前第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁
MITSUBISHI MICROCOMPUTERS
M37221M6-XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
45
(10) Clock for Display
As a clock for display to be used for CRT display, it is possible to
select one of the following 4 types.
Main clock supplied from the XIN pin
Main clock supplied from the XIN pin divided by 1.5
Clock from the LC or RC supplied from the pins OSC1 and OSC2.
Clock from the ceramic resonator or quartz-crystal oscillator sup-
plied from the pins OSC1 and OSC2.
This clock for display can be selected for each block by the CRT
clock selection register (address 00ED16).
When selecting the main clock, set the oscillation frequency to
8 MHz.
Table 14. Set value of CRT clock selection register and clock for display
b0
0
1
0
1
b1
0
1
Functions
The clock for display is supplied by connecting RC or LC across the pins OSC1 and OSC2.
Since the main clock is used as the clock for display, the oscillation frequency is limited. Because
of this, the character size in width (horizontal) direction is also limited. In this case, pins OSC1
and OSC2 are also used as input ports P33 and P34 respectively.
The clock for display is supplied by connecting the following across the pins OSC1 and OSC2.
a ceramic resonator only for CRT display and a feedback resistor
a quartz-crystal oscillator only for CRT display and a feedback resistor (Note)
Note: It is necessary to connect other ceramic resonator or quartz-crystal oscillator across the pins XIN and XOUT.
Fig. 48. Structure of CRT clock selection register
CRT oscillation frequency =
f(XIN)
CRT oscillation frequency =
f(XIN)/1.5
0
7
0
00
000
CRT clock selection register
(CK : address 00ED16)
Display clock selection bits
Refer to Table 14.
Fix these bits to “0.”
相關PDF資料 |
PDF描述 |
|---|---|
| M37224M3-XXXSP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| M37270MF-XXXSP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP64 |
| M37273MFH-XXXSP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP52 |
| M3727GM8-XXXSP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42 |
| M37280MFH-XXXSP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64 |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37221M8H | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37221M8H-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37221M8H-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37221MAH-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37221MAH-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
發(fā)布緊急采購，3分鐘左右您將得到回復。