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: 6/129页
文件大小: 8549K
代理商: UPD70F3261YGF-JBT-A
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16541EJ5V1UD
103
(7) Port setting
Set a port as illustrated below.
Figure 4-2. Setting of Each Register and Pin Function
PMCn register
Output mode
Input mode
PMn register
“0”
“1”
“0”
“1”
“0”
“1”
(a)
(b)
(c)
(d)
Alternate function
(when two alternate
functions are available)
Port mode
Alternate function 1
Alternate function 2
PFCn register
Alternate function
(when three or more alternate
functions are available)
Alternate function 1
Alternate function 2
Alternate function 3
Alternate function 4
PFCn register
PFCEn register
PFCEnm
0
1
0
1
0
1
(a)
(b)
(c)
(d)
PFCnm
Remark
Set the alternate functions in the following sequence.
<1> Set the PFCn and PFCEn registers.
<2> Set the PFCn register.
<3> Set the INTRn or INTFn register (to specify an external interrupt pin).
If the PMCn register is set first, an unintended function may be set while the PFCn and PFCEn
registers are being set.
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