NEC V850ES/KE1+ User Manual page 95

(5) Port 9 function control register (PFC9)
Caution When port 9 is specified as an alternate function by the PMC9.PMC9n bit with the PFC9n bit
maintaining the initial value (0), output becomes undefined. Therefore, to specify port 9 as
alternate function 2, set the PFC9n bit to 1 first and then set the PMC9n bit to 1 (n = 0, 1, 6 to
9, 13 to 15).
After reset: 0000H
Note
PFC9 (PFC9H )
(PFC9L)
Note When reading from or writing to bits 8 to 15 of the PFC9 register in 8-bit or 1-bit units,
specify these bits as bits 0 to 7 of the PFC9H register.
Remark The PFC9 register can be read or written in 16-bit units.
However, when the higher 8 bits and the lower 8 bits of the PFC9 register are used as
the PFC9H register and as the PFC9L register, respectively, these registers can be
read or written in 8-bit or 1-bit units.
CHAPTER 4 PORT FUNCTIONS
R/W Address: PFC9 FFFFF472H,
15 14 13
PFC915 PFC914 PFC913
PFC97 PFC96 0
PFC915 Specification of alternate-function pin of P915 pin
1
INTP6 input
PFC914 Specification of alternate-function pin of P914 pin
1 INTP5 input
PFC913 Specification of alternate-function pin of P913 pin
1
INTP4 input
PFC99 Specification of alternate-function pin of P99 pin
1
SCK01 I/O
PFC98 Specification of alternate-function pin of P98 pin
1 SO01 output
PFC97 Specification of alternate-function pin of P97 pin
1 SI01 input
PFC96 Specification of alternate-function pin of P96 pin
1 TO51 output
PFC91 Specification of alternate-function pin of P91 pin
1
RXD1 input
PFC90 Specification of alternate-function pin of P90 pin
1 TXD1 output
User's Manual U16896EJ2V0UD
PFC9L FFFFF472H, PFC9H FFFFF473H
12 11 10
0 0 0
0 0 0
9 8
PFC99 PFC98
PFC91 PFC90
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