RX610 Group
14. I/O Ports
R01UH0032EJ0120 Rev.1.20
Page 412 of 1006
Feb 20, 2013
14.3.7
Port 6 (P6)
(1) P60/CS0#/CS4#-A/CS5#-B
The pin function is switched as shown below according to the combination of the operating mode, the external bus enable
bit (EXBE) in the system control register 0 (SYSCR0), the register setting for the bus controller, the port function control
register m (PFCRm) setting, and the B0 bit in P6.DDR.
Module Name
Pin Function
Setting
Bus Controller
I/O Port
CS0#_OE
CS4#-A_OE
CS5#-B_OE
P6.DDR.B0
Bus controller
CS0# output
1
CS4#-A output
1
CS5#-B output
1
I/O port
P60 output
0
0
0
1
P60 input (initial value)
0
0
0
0
(2) P61/CS1#/CS2#-B/CS5#-A/CS6#-B/CS7#-B
The pin function is switched as shown below according to the combination of the operating mode, the EXBE bit in
SYSCR0, the register setting for the bus controller, the port function control register m (PFCRm) setting, and the B1 bit
in P6.DDR.
Module Name Pin Function
Setting
Bus Controller
I/O Port
CS1#_OE
CS2#-B_OE
CS5#-A_OE CS6#-B_OE
CS7#-B_OE
P6.DDR.B1
Bus controller
CS1# output
*
1
CS2#-B output
*
1
CS5#-A output
*
1
CS6#-B output
*
1
CS7#-B output
*
1
I/O port
P61 output
0
0
0
0
0
1
P61 input (initial value) 0
0
0
0
0
0
Note:
*
Enabled in expansion mode with on-chip ROM disabled or disabled (SYSCR0.EXBE = 1).