NEC V850ES/KE1+ User Manual page 83

(4) Port 3 function register H (PF3H)
After reset: 00H
PF3H 0
PF3n
0
1
Caution When using P38 and P39 as N-ch open-drain-output alternate-function pins, set in
the following sequence.
Be sure to set the port latch to 1 before setting the pin to N-ch open-drain output.
P3n bit = 1 → PF3n bit = 1 → PMC3n bit = 1
(5) Port 3 function control register (PFC3)
After reset: 00H
PFC3 0
Remark For details of specification of alternate-function pins, refer to 4.3.2 (7) Specifying
alternate-function pins of port 3.
(6) Port 3 function control expansion register (PFCE3)
After reset: 00H
PFCE3
0
Remark For details of specification of alternate-function pins, refer to 4.3.2 (7) Specifying
alternate-function pins of port 3.
CHAPTER 4 PORT FUNCTIONS
R/W Address: FFFFFC67H
0 0 0
Specification of normal port/alternate function (n = 8, 9)
When used as normal port (N-ch open-drain output)
When used as alternate-function (N-ch open-drain output)
R/W Address: FFFFF466H
0 PFC35 PFC34
R/W Address: FFFFF706H
0 0 PFCE34
User's Manual U16896EJ2V0UD
0 0 PF39
PFC33 PFC32 0
PFCE33 0 0
PF38
0
0
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