HD64336901G Renesas Technology, HD64336901G Datasheet - Page 142

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

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.
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Rev. 1.00, 11/03, page 114 of 376
Bit
7
6
5
4
3
2
1
0
Register
Bit Name
Setting value 0
Register
Bit Name
Setting value 0
P17/IRQ3/TRGV pin
P14/IRQ0 pin
Don't care
Don't care
Bit Name
PUCR17
PUCR14
Port Pull-Up Control Register 1 (PUCR1)
Pin Functions
PMR1
IRQ3
1
PMR1
IRQ0
1
Initial
Value
0
1
1
0
1
1
1
1
PCR1
PCR17
0
1
X
PCR1
PCR14
0
1
X
R/W
R/W
R/W
Description
Only bits for which PCR1 is cleared are valid.
The pull-up MOS of the P17 and P14 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.
Bits 6, 5, and 3 to 0 are reserved. These bits are always
read as 1.
Pin Function
P17 input pin
P17 output pin
IRQ3 input/TRGV input pin
Pin Function
P14 input pin
P14 output pin
IRQ0 input pin