NEC V850/SB1 User Manual page 505

(c) Port 10 function register (PF10)
PF10 can be read/written in 8-bit or 1-bit units.
00H
After reset: R/W
7
PF10 PF107
PF10n
0 Normal output
1 N-ch open-drain output
CHAPTER 14
Address: FFFFF0B4H
6 5
PF106 PF105 PF104
Control of normal output/N-ch open-drain output (n = 0 to 7)
User's Manual U13850EJ6V0UD
PORT FUNCTION
4 3 2
PF103 PF102
1 0
PF101 PF100
505