HD6432621 Hitachi, HD6432621 Datasheet - Page 257
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HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
(1069 pages)
- Current page: 257 of 1069
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9.2
9.2.1
Port 1 is an 8-bit I/O port. Port 1 pins also function as PPG output pins (PO15 to PO8), TPU I/O
pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1,
TIOCB1, TIOCA2, and TIOCB2), external interrupt pins (IRQ0 and IRQ1), and address bus
output pins (A23 to A20). Port 1 pin functions change according to the operating mode.
Figure 9-1 shows the port 1 pin configuration.
Port 1
Overview
Port 1
Port 1 pins
Pin functions in modes 4 to 6
P17 (I/O) / PO15 (output) / TIOCB2 (I/O) / TCLKD (input)
P16 (I/O) / PO14 (output) / TIOCA2 (I/O) / IRQ1 (input)
P15 (I/O) / PO13 (output) / TIOCB1 (I/O) / TCLKC (input)
P14 (I/O) / PO12 (output) / TIOCA1 (I/O) / IRQ0 (input)
P13 (I/O) / PO11 (output) / TIOCD0 (I/O) / TCLKB (input) / A23 (output)
P12 (I/O) / PO10 (output) / TIOCC0 (I/O) / TCLKA (input) / A22 (output)
P11 (I/O) / PO9 (output) / TIOCB0 (I/O) / A21 (output)
P10 (I/O) / PO8 (output) / TIOCA0 (I/O) / A20 (output)
Pin functions in mode 7
P17 (I/O) / PO15 (output) / TIOCB2 (I/O) / TCLKD (input)
P16 (I/O) / PO14 (output) / TIOCA2 (I/O) / IRQ1 (input)
P15 (I/O) / PO13 (output) / TIOCB1 (I/O) / TCLKC (input)
P14 (I/O) / PO12 (output) / TIOCA1 (I/O) / IRQ0 (input)
P13 (I/O) / PO11 (output) / TIOCD0 (I/O) / TCLKB (input)
P12 (I/O) / PO10 (output) / TIOCC0 (I/O) / TCLKA (input)
P11 (I/O) / PO9 (output) / TIOCB0 (I/O)
P10 (I/O) / PO8 (output) / TIOCA0 (I/O)
Figure 9-1 Port 1 Pin Functions
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