參數(shù)資料
型號(hào)： MB90F455SPMT
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 16-bit Proprietary Microcontroller
中文描述： 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁(yè)數(shù)： 23/78頁(yè)
文件大?。?/td> 680K
代理商： MB90F455SPMT
MB90455 Series
23
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PERIPHERAL RESOURCES
1.
I/O Ports
The I/O ports are used as general-purpose input/output ports (parallel I/O ports). The MB90455 series model
is provided with 5 ports (34 inputs). The ports function as input/output pins for peripheral functions also.
I/O port functions
An I/O port, using port data resister (PDR), outputs the output data to I/O pin and input a signal input to I/O port.
The port direction register (DDR) specifies direction of input/output of I/O pins on a bit-by-bit basis.
The following summarizes functions of the ports and sharing peripheral functions :
Port 1 : General-purpose input/output port, used also for PPG timer output and input capture inputs.
Port 2 : General-purpose input/output port, used also for reload timer input/output and external interrupt input.
Port 3 : General-purpose input/output port, used also for A/D converter activation trigger pin.
Port 4 : General-purpose input/output port, used also for UART input/output.
Port 5 : General-purpose input/output port, used also analog input pin.
Port 1 pins block diagram (single-chip mode)
Port 1 registers (single-chip mode)
Port 1 registers include port 1 data register (PDR1) and port 1 direction register (DDR1).
The bits configuring the register correspond to port 1 pins on a one-to-one basis.
Relation between port 1 registers and pins
Port name
Bits of register and corresponding pins
Port 1
PDR1, DDR1
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
Corresponding pins
P17
P16
P15
P14
P13
P12
P11
P10
Pch
Nch
Peripheral
function input
Peripheral
function output
Port data register (PDR)
PDR read
Output latch
PDR write
Peripheral function
output permission
Pin
Port direction register (DDR)
Direction
latch
DDR write
DDR read
Standby control (SPL=1)
Standby control : Control among Stop mode (SPL=1), Time-base timer mode (SPL=1), and clock mode
(SPL=1).
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相關(guān)PDF資料
PDF描述
MB90F456 16-bit Proprietary Microcontroller
MB90F456PMT 16-bit Proprietary Microcontroller
MB90F456S 16-bit Proprietary Microcontroller
MB90F456SPMT 16-bit Proprietary Microcontroller
MB90F457 16-bit Proprietary Microcontroller
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