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R01UH0336EJ0102 Rev.1.02
Page 54 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 2 Port Functions
(7)
PFCn – Port Function Control Register
This register, together with register PFCEn, specifies an alternative function of
the pins.
Some alternative functions require direct I/O control of pin Pn_m. For such
alternative functions PIPCn.PIPCn_m must be set to 1 as well.
For other alternative functions, input/output must be specified by PMn.PMn_m
(n = 0 to 5, 8).
Access
Readable and writable in 16-bit units.
Address
Refer to Table 2-7, Port Group Configuration Registers.
Initial value
0000
H
A reset from any source will initialize the bits.
(8)
PFCEn – Port Function Control Expansion Register
This register, together with register PFCn, specifies an alternative function of
the pins.
Some alternative functions require direct I/O control of pin Pn_m. For such
alternative functions PIPCn.PIPCn_m must be set to 1 as well.
For other alternative functions, input/output must be specified by PMn.PMn_m
(n = 0 to 5, 8).
Access
Readable and writable in 16-bit units.
Address
Refer to Table 2-7, Port Group Configuration Registers.
Initial value
0000
H
A reset from any source will initialize the bits.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PFC
n_15
PFC
n_14
PFC
n_13
PFC
n_12
PFC
n_11
PFC
n_10
PFC
n_9
PFC
n_8
PFC
n_7
PFC
n_6
PFC
n_5
PFC
n_4
PFC
n_3
PFC
n_2
PFC
n_1
PFC
n_0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 2-15
PFCn Register Contents
Bit Position
Bit Name
Function
15 to 0
PFCn_[15:0]
Specifies the alternative function of a pin.
See Table 2-4, Alternative Mode Selection Overview
(PMCn.PMCn_m = 1).
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PFCE
n_15
PFCE
n_14
PFCE
n_13
PFCE
n_12
PFCE
n_11
PFCE
n_10
PFCE
n_9
PFCE
n_8
PFCE
n_7
PFCE
n_6
PFCE
n_5
PFCE
n_4
PFCE
n_3
PFCE
n_2
PFCE
n_1
PFCE
n_0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 2-16
PFCEn Register Contents
Bit Position
Bit Name
Function
15 to 0
PFCEn_[15:0]
Specifies the alternative function of a pin.
See table Table 2-4, Alternative Mode Selection
Overview (PMCn.PMCn_m = 1).
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