Rev. 5.00, 12/03, page 287 of 1088
8.12
Port G
8.12.1
Overview
Port G is a 5-bit I/O port. Port G pins also function as bus control signal output pins (
CS0
to
CS3
,
CS6
,
CS7
). The A/D converter input pin (
ADTRG
), and interrupt input pins (
IRQ6
,
IRQ7
). The
interrupt input pins (
IRQ6
,
IRQ7
) are Schmitt-triggered inputs.
Figure 8-24 shows the port G pin configuration.
PG4/
CS0
PG3/
CS1
/
CS7
PG2/
CS2
PG1/
CS3
/
IRQ7
/
CS6
PG0/
ADTRG
/
IRQ6
PG4
PG3
PG2
PG1
PG0
Note:
*
Modes 6 and 7 are not available in the ROMless versions.
(I/O)
(I/O)
(I/O)
(I/O)/
IRQ7
(input)
(I/O)/
Port G pins
Pin functions in mode 7
*
Pin functions in modes 4 to 6
*
PG4
PG3
PG2
PG1
PG0
(I/O)/
(I/O)/
(I/O)/
(I/O)/
(I/O)/
CS0
CS1
CS2
CS3
(output)
(output)/
(output)
(output)/
IRQ7
(input)/
CS7
(output)
CS6
(output)
Port G
ADTRG
(input)/
IRQ6
(input)
ADTRG
(input)/
IRQ6
(input)
Figure 8-24 Port G Pin Functions
Содержание H8S/2318 series
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