CHAPTER 4 PORT FUNCTIONS
(c) Port 3 mode control register (PMC3)
This is a 16-bit register that specifies the port mode/control mode.
This register can be read/written in 16-bit units only.
However, when the higher 8 bits and the lower 8 bits of the PMC3 register are used as the PMC3H
register and as the PMC3L register, respectively, this register can be read/written in 8-bit or 1-bit units.
(i) V850ES/KF1, V850ES/KG1, V850ES/KJ1
After Reset: 0000H
R/W
Address: FFFFF446H (PMC3, PMC3L), FFFFF447H (PMC3H)
15
14
0
13
0
12
0
11
0
10
0
9
8
PMC3 (PMC3HNote 1
)
0
0
PMC39Note PMC38Note
(PMC3L)
0
PMC35 PMC34 PMC33 PMC32 PMC31 PMC30
Specification of P39 pin operation mode
PMC39
0
1
I/O port
SCL0 I/O
PMC38
Specification of P38 pin operation mode
Specification of P35 pin operation mode
0
1
I/O port
SDA0 I/O
PMC35
0
1
I/O port
TI010/TO01 I/O
PMC34
Specification of P34 pin operation mode
Specification of P33 pin operation mode
Specification of P32 pin operation mode
Specification of P31 pin operation mode
Specification of P30 pin operation mode
0
1
I/O port
TI001 input
PMC33
0
1
I/O port
TI000/TO00 I/O
PMC32
0
1
I/O port
ASCK0 input
PMC31
0
1
I/O port
RXD0 input
PMC30
0
1
I/O port
TXD0 output
Notes 1. When reading from or writing to bits 8 to 15 of the PMC3 register in 8-bit or 1-bit
units, specify these bits as bits 0 to 7 of the PMC3H register.
2. Only for products with an I2C bus. For all other products, set this bit to 0.
User’s Manual U15862EJ3V0UD
157
NEC [ NEC ]
