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參數(shù)資料
| 型號(hào)： | M306H1SFP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, 10 MHz, MICROCONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144 |
| 文件頁(yè)數(shù)： | 122/243頁(yè) |
| 文件大?。?/td> | 3403K |
| 代理商： | M306H1SFP |
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SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
with DATA SLICER and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
207
Rev. 1.0
M306H1SFP
2.16 Programmable I/O Ports
There are 87 programmable I/O ports: P0 to P10 (excluding P85). Each port can be set independently for
input or output using the direction register. A pull-up resistance for each block of 4 ports can be set. P85
is an input-only port and has no built-in pull-up resistance.
Figures 2.16.1 to 2.16.4 show the programmable I/O ports. Figure 2.16.5 shows the I/O pins.
Each pin functions as a programmable I/O port and as the I/O for the built-in peripheral devices.
To use the pins as the inputs for the built-in peripheral devices, set the direction register of each pin to
input mode. When the pins are used as the outputs for the built-in peripheral devices (other than the D-A
converter), they function as outputs regardless of the contents of the direction registers. When pins are to
be used as the outputs for the D-A converter, do not set the direction registers to output mode. See the
descriptions of the respective functions for how to set up the built-in peripheral devices.
(1) Direction registers
Figure 2.16.6 shows the direction registers.
These registers are used to choose the direction of the programmable I/O ports. Each bit in these regis-
ters corresponds one for one to each I/O pin.
Note: There is no direction register bit for P85.
(2) Port registers
Figure 2.16.7 shows the port registers.
These registers are used to write and read data for input and output to and from an external device. A
port register consists of a port latch to hold output data and a circuit to read the status of a pin. Each bit
in port registers corresponds one for one to each I/O pin.
(3) Pull-up control registers
Figure 2.16.8 shows the pull-up control registers.
The pull-up control register can be set to apply a pull-up resistance to each block of 4 ports. When ports
are set to have a pull-up resistance, the pull-up resistance is connected only when the direction register is
set for input.
However, the pull-up control register of P0 to P5 is invalid.
(4) Port control register
Figure 2.16.9 shows the port control register.
The bit 0 of port control resister is used to read port P1 as follows:
0 : When port P1 is input port, port input level is read.
When port P1 is output port , the contents of port P1 register is read.
1 : The contents of port P1 register is read always.
This register is valid in the following:
External bus width is 8 bits.
Port P1 can be used as a port in multiplexed bus for the entire space.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M306H2FCFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER |
| M306H2FCFP#U0 | 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 128KB FLASH 5V 116LQFP - Trays |
| M306H2MC | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER |
| M306H2MC-XXXFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER |
| M306H2T-RPD-E | 制造商:Renesas Electronics Corporation 功能描述:EMULATION POD, M16C6H GROUP (M306H2) - Bulk |
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