M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 89

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(5) Port n function control expansion register (PFCEn)
(6) Pull-up resistor option register (PUn)
The PFCEn register specifies the alternate function of a port pin to be used if the pin has three or more
alternate functions.
Each bit of this register corresponds to one pin of port n, and the alternate function of a port pin can be
specified in 1-bit units.
PUn is a register that specifies the connection of an on-chip pull-up resistor.
Each bit of the pull-up resistor option register corresponds to one pin of port n and can be specified in 1-bit
units.
PFCEn
After reset:
PFCn
PUn
After reset: 00H
PFCEnm
PFCEn7 PFCEn6
PFCn7
PUnm
PUn7
00H
0
0
1
1
0
1
R/W
Not connected
Connected
PFCnm
PFCn6
PUn6
0
1
0
1
R/W
CHAPTER 4 PORT FUNCTIONS
PFCEn5 PFCEn4
Alternate function 1
Alternate function 2
Alternate function 3
Alternate function 4
PFCn5
User’s Manual U16543EJ4V0UD
PUn5
Control of on-chip pull-up resistor connection
PFCn4
PUn4
Specification of alternate function
PFCEn3 PFCEn2 PFCEn1
PFCn3
PUn3
PFCn2
PUn2
PFCn1
PUn1
PFCEn0
PFCn0
PUn0
87