參數(shù)資料
型號(hào)： MB91F158PMC1
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： RISC MICROCONTROLLER, PQFP120
封裝： 14 X 14 MM, 1.70 MM HEIGHT, 0.40 MM PITCH, PLASTIC, LQFP-120
文件頁數(shù)： 25/92頁
文件大?。?/td> 2193K
代理商： MB91F158PMC1
MB91F158 Series
DS07-16316-2E
31
I/O Port (attached with the open drain output function and a pullup resistor)
Figure PORT-3 Port block attached with the open drain output function and a pullup resistor
Notes :
Pullup resistor setup register (PCR) R/W
Controls turning the pullup resistor on/off.
0 : Pullup resistor disabled
1 : Pullup resistor enabled
Open drain control register (ODCR) R/W
Controls open drain in output mode.
0 : Standard output port during output mode
1 : Open-drain output port during output mode
This register has no significance in input mode (output Hi-Z) . Input/output mode is determined by the
direction register (DDR) .
Priority is also given to the setting of the pullup resistor control register in stop mode.
When a relevant pin is used as an external bus pin, neither function is available. Do not write “1” to either
register.
Data bus
PDR read
0
1
0
1
Pin
Resource input
Resource output
allowed
PDR
DDR
ODCR
PCR
PDR
DDR
ODCR
PCR
: Port Data Register
: Data Direction Register
: Open Drain Control Register
: Pullup Control Register
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