HD64336901G Renesas Technology, HD64336901G Datasheet - Page 139
HD64336901G
Manufacturer Part Number
HD64336901G
Description
(HD64xxx Series) 16-BIT MICROCONTROLLER
Manufacturer
Renesas Technology
Datasheet
1.HD64336901G.pdf
(408 pages)
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The LSI of the H8/36912 Group and H8/36902 Group has 18 general I/O ports. Port 8 (P84 to
P80) is a large current port, which can drive 20 mA (@V
output. Any of these ports can become an input port immediately after a reset. They can also be
used as I/O pins of the on-chip peripheral modules or external interrupt input pins, and these
functions can be switched depending on the register settings. The registers for selecting these
functions can be divided into two types: those included in I/O ports and those included in each on-
chip peripheral module. General I/O ports are comprised of the port control register for controlling
inputs/outputs and the port data register for storing output data and can select inputs/outputs in bit
units. For functions in each port, see Appendix B.1, I/O Port Block Diagrams. For the execution of
bit manipulation instructions to the port control register and port data register, see section 2.8.3,
Bit Manipulation Instruction.
9.1
Port 1 is a general I/O port also functioning as an IRQ interrupt input pin and timer V input pin.
Figure 9.1 shows its pin configuration.
Port 1 has the following registers.
Port mode register 1 (PMR1)
Port control register 1 (PCR1)
Port data register 1 (PDR1)
Port pull-up control register 1 (PUCR1)
Port 1
Figure 9.1 Port 1 Pin Configuration
Section 9 I/O Ports
Port 1
P17/
P14/
OL
= 1.5 V) when a low level signal is
/TRGV
Rev. 1.00, 11/03, page 111 of 376
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