HD6433682 ETC, HD6433682 Datasheet - Page 140

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

9.1.4
PUCR1 controls the pull-up MOS in bit units of the pins set as the input ports.
9.1.5
The correspondence between the register specification and the port functions is shown below.
P17/IRQ3
Legend X: Don't care.
P16/IRQ2
Legend X: Don't care.
Rev. 3.00, 05/03, page 110 of 464
Register
Bit Name
Setting value
Register
Bit Name
Setting value
Bit
7
6
5
4
3
2
1
0
IRQ3/TRGV pin
IRQ3
IRQ3
IRQ2 pin
IRQ2
IRQ2
Bit Name
PUCR17
PUCR16
PUCR15
PUCR14
PUCR12
PUCR11
PUCR10
Port Pull-Up Control Register 1 (PUCR1)
Pin Functions
PMR1
PMR1
IRQ3
0
1
IRQ2
0
1
Initial
Value
0
0
0
0
1
0
0
0
PCR1
PCR17
0
1
X
PCR1
PCR16
0
1
X
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
P17 output pin
IRQ3 input/TRGV input pin
P16 output pin
IRQ2 input pin
Pin Function
P17 input pin
Pin Function
P16 input pin
Description
Only bits for which PCR1 is cleared are valid. The pull-up
MOS of P17 to P14 and P12 to P10 pins enter the on-
state when these bits are set to 1, while they enter the
off-state when these bits are cleared to 0.
Bit 3 is a reserved bit. This bit is always read as 1.