D12320VF25IV Datasheet, PDF (424/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.7.3 Pin Functions
Port 6 pins also function as interrupt input pins (IRQ₀ to IRQ₃), DMAC I/O pins (DREQ₀, TEND₀,
DREQ₁, and TEND₁)*, and bus control output pins (CS₄ to CS₇). Port 6 pin functions are shown in
table 9.12.
Table 9.12 Port 6 Pin Functions
Pin
P67/IRQ3/CS7
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
bits P67DDR and CS167E.
Mode
Modes 4 to 6
Mode 7
P67DDR
0
1
0
1
CS167E
Pin function
—
P67 input
pin
0
1
—
P67 output CS7 output P67 input
pin
pin
pin
IRQ3 interrupt input pin
—
P67 output
pin
P66/IRQ2/CS6
The pin function is switched as shown below according to the combination of
bits P66DDR and CS167E.
Mode
Modes 4 to 6
Mode 7
P66DDR
0
1
0
1
CS167E
—
0
1
—
—
Pin function
P66 input P66 output CS6 output P66 input P66 output
pin
pin
pin
pin
pin
IRQ2 interrupt input pin
P65/IRQ1
The pin function is switched as shown below according to bit P65DDR.
P65DDR
0
1
Pin function
P65 input pin
P65 output pin
IRQ1 interrupt input pin
P64/IRQ0
The pin function is switched as shown below according to bit P64DDR.
P64DDR
0
1
Pin function
P64 input pin
P64 output pin
IRQ0 interrupt input pin
Rev.6.00 Sep. 27, 2007 Page 392 of 1268
REJ09B0220-0600