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參數(shù)資料
| 型號(hào)： | M37212EF-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 8/67頁 |
| 文件大小： | 4380K |
| 代理商： | M37212EF-XXXFP |
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MITSUBISHI MICROCOMPUTERS
M37212M4-XXXSP, M37212M6-XXXSP/FP
M37212EF-XXXSP/FP, M37212EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
and ON-SCREEN DISPLAY CONTROLLER
16
SERIAL I/O
The M37212M6-XXXSP has a built-in serial I/O which can either trans-
mit or receive 8-bit data in serial in the clock synchronous mode.
The serial I/O block diagram is shown in Figure 8. The synchronizing
clock I/O pin (SCLK), and data I/O pins (SOUT, SIN) also function as
port P4.
Bit 2 of the serial I/O mode register (address 00DC16) selects whether
the synchronizing clock is supplied internally or externally (from the
P41/SCLK/A-D6 pin). When an internal clock is selected, bits 1 and 0
select whether f(XIN) is divided by 4, 16, 32, or 64. Bit 3 selects whether
port P4 is used for serial I/O or not. To use the P42/SIN/A-D5 pin as
the SIN pin, set the bit 2 of the port P4 direction register (address
00C916) to “0.”
The operation of the serial I/O function is described below. The func-
tion of the serial I/O differs depending on the clock source; external
clock or internal clock.
Fig. 8. Serial I/O block diagram
8
Serial I/O shift register (8)
Data bus
Serial I/O interrupt
request
Selection gate :
Connected to black
colored side at reset.
Synchronization circuit
Frequency
divider
1/8
1/4
1/16
SM1
SM0
Serial I/O counter (8)
SM5 : LSB
MSB
S
SM2
1/2
SM6
XIN
P42/SIN/A-D5
P40/SOUT(/IN)/A-D7
P41/SCLK/A-D6
1/2
SM3
P40 latch
P41 latch
SM3
(Address 00DD16)
Note : When the data is set in the serial I/O register (address 00DD16), the register functions as the serial I/O shift register.
SM : Serial I/O mode register
(Note)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37212EF-XXXSP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP52 |
| M37221M6-XXXSP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42 |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37212M4 | 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 |
| M37212M4-054SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37212M4-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 |
| M37212M6-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 |
| M37212M6-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 |
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