μ
PD720231
2.
Pin Function
R19UH0094EJ0100 Rev 1.00
Page 7 of 30
Mar 1, 2013
2.7
General Purpose I/O Interface
Table 2-7. General Purpose I/O Interface
Pin Name
Pin
No.
Direction Buffer
Type
Active
Level
Function
GPIO0/
SPISO
1
General purpose I/O or SPI read data signal
GPIO1/
SPISCK
2
General purpose I/O or SPI clock
GPIO2/
SPISI
3
General purpose I/O or SPI write data signal
GPIO3/
SPICSB
4
General purpose I/O or SPI chip select for the
external serial ROM.
GPIO4 6
3.3/2.5 V
I/O
General purpose I/O
Default low drive.
Note2
GPIO5
Note1
8
General purpose I/O
GPIO6/ACT
Note1
9
5 V
tolerant
buffer
General purpose I/O or Disk Activity LED
GPIO7/CLKOUT 41
General purpose I/O or 30 MHz clock output
GPIO8 37
General purpose I/O
GPIO9/EXTINT 48
I/O
3.3/2.5 V
I/O
−
General purpose I/O or external interrupt such as
push button input
Note 1.
Except for GPIO5 and GPIO6, all the other GPIOs are supplied power from VDDGPIO. GPIO5
and GPIO6 are supplied power from internal VDD33 line.
mark
2.
GPIO4 drives low in default. Other GPIO signals are open state in default.
2.8
Renesas private signal
Table 2-8. Test signal
Pin Name
Pin No. Direction Buffer Type
Active
Level
Function
IC 42,
43
I
−
−
Test signal.
These pins must be connected to GND or left
opened.
NC 14,
36
−
−
−
Non connection pin.
This pin should be opened.
