参数资料
型号: UPD70F3261YGF-JBT-A
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 20 MM, PLASTIC, QFP-100
文件页数: 5/129页
文件大小: 8549K
代理商: UPD70F3261YGF-JBT-A
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16541EJ5V1UD
102
(6) Port n function register (PFn)
The PFn register specifies normal output or N-ch open-drain output.
Each bit of this register corresponds to one pin of port n, and the output mode of the port pin can be specified
in 1-bit units.
PFn7
PFn6
PFn5
PFn4
PFn3
PFn2
PFn1
PFn0
Normal output (CMOS output)
N-ch open-drain output
PFnm
Note
0
1
Control of normal output/N-ch open-drain output
PFn
After reset: 00H
R/W
Note
The PFnm bit of the PFn register is valid only when the PMnm bit of the PMn register is 0 (when the
output mode is specified) in port mode (PMCnm bit = 0). When the PMnm bit is 1 (when the input mode
is specified), the set value of the PFn register is invalid.
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