RZ/A2M CPU Board RTK7921053C00000BE
2. Function specifications
R20UT4397EJ0100 Rev.1.00
2-22
2018.10.11
2.6
I/O Ports
In RTK7921053C00000BE, the I/O ports of the RZ/A2M are connected to switches and LEDs.
Figure 2.6.1 shows the I/O port block diagram. Table 2.6.1 shows the function switching for the port L.
Figure 2.6.1
I/O Port Block Diagram
Table 2.6.1
Function Switching for Port L
Terminal
function
High
Low
PD_0
Uses PL_[3:0] as system setting pin.
(Initial setting)
Uses PL_[3:0] as RQ input pin.
[Note] shows the setting function to select.
RZ/A2M (U1)
P6_0 (LED-red)
PC_1 (LED-green)
PL_0 /
MD_CLKS
/ IRQ4
PL_1
/
MD_CLK
/ IRQ5
PL_2 /
MD_BOOT2
/ IRQ6
PL_3 /
MD_BOOT1
/ IRQ7
PD_0 (IRQ input)
To SUB board
To USB I/F
3.3V
PL_4 /
MD_BOOT0
BSCANP
Vss1
Vss2
Note:
Red characters
indicate
functions in use.
: Unmounted.
LED1
For system
settings
DIP switch
(SW1)
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
1
8
CLKS
CLK
BOOT1
BOOT2
4
BOOT0
BSCANP
Vss2
Vss1
BOOT0
BSCANP
Vss2
Vss1
IRQ input /
System settings
(U6)
MUX
OE#
S
4A
4B1
4B2
3A
3B1
3B2
2A
2B1
2B2
1A
1B1
1B2
CLKS
CLK
BOOT2
BOOT1
ON(L):A=B1, OFF(H):A=B2
4
2
2
2
3
4
5
6
7