參數(shù)資料
型號: MB91V301CR-ESE1
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 68 MHz, RISC MICROCONTROLLER, CPGA179
封裝: CERAMIC, PGA-179
文件頁數(shù): 102/139頁
文件大?。?/td> 1482K
代理商: MB91V301CR-ESE1
MB91301 Series
65
2.
I/O Ports
MB91301 series pins can be used as I/O ports when not set for use by the external bus interface or the various
peripheral I/O functions.
I/O port (with pull-up resistor) block diagram
Note : For port output, the pull-up resistor is disabled irrespective of the setting.
I/O ports with pull-up resistors have the following registers :
PDR (Port Data Register)
DDR (Data Direction Register)
PFR (Port Function Register)
PCR (Pull-up Control Register)
I/O ports have three following modes
When port is in input mode (PFR
= “0” & DDR = “0”)
PDR read : Reads the level of the corresponding external pin.
PDR write : Writes the value to the PDR.
When port is in output mode (PFR
= “0” & DDR = “1”)
PDR read : Reads the PDR value.
PDR write : Outputs the PDR value to the corresponding external pin.
When port is in peripheral output mode (PFR
= “1” & DDR = “X”)
PDR
: Reads the value of the corresponding peripheral output.
PDR write : Writes the value to the PDR.
Port Bus
0
1
0
Pin
PDR
PFR
DDR
PCR
PDR
DDR
PFR
PCR
: Port Data Register
: Data Direction Register
: Port Function Register
: Pull-up Control Register
Peripheral output
PDR read
Peripheral input
Pull-up resistor
(approx. 25 k
)
PCR
= 0 : No pull-up resistor
PCR
= 1 : Use pull-up resistor
相關(guān)PDF資料
PDF描述
MB95108ANPFV 8-BIT, MROM, 16.25 MHz, MICROCONTROLLER, PQFP64
MB95108ANPFM 8-BIT, MROM, 16.25 MHz, MICROCONTROLLER, PQFP64
MB95136MBPFV 8-BIT, MROM, 16.25 MHz, MICROCONTROLLER, PDSO30
MB95F136MBSPFV 8-BIT, FLASH, 16.25 MHz, MICROCONTROLLER, PDSO30
MB95F133JBWPF 8-BIT, FLASH, 16.25 MHz, MICROCONTROLLER, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB91V307RCR 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-Bit Microcontroller
MB91V350A 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-Bit Proprietary Microcontroller
MB91V650 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Microcontrollers
MB-920 制造商:Maxxtro 功能描述:
MB-921 制造商:Maxxtro 功能描述:Bulk