RX610 Group
14. I/O Ports
R01UH0032EJ0120 Rev.1.20
Page 431 of 1006
Feb 20, 2013
14.3.14
Port D (PD)
(1) PD0/D0
,
PD1/D1
,
PD2/D2
,
PD3/D3
,
PD4/D4
,
PD5/D5
,
PD6/D6
,
PD7/D7
The pin function is switched as shown below according to the combination of the external bus enable (EXBE) bit in the
system control register 0 (SYSCR0) and the Bj bit (j = 0 to 7) in PD.DDR.
Module Name
Pin Function
Setting
I/O Port
PD.DDR.Bn
Bus controller
Data I/O
*
I/O port
PDn output
1
PDn input (initial value)
0
Note:
*
Enabled in expansion mode with on-chip ROM disabled or disabled (SYSCR0.EXBE = 1).
14.3.15
Port E (PE)
(1) PE0/D8
,
PE1/D9
,
PE2/D10
,
PE3/D11
,
PE4/D12
,
PE5/D13/(IRQ5#-A)
,
PE6/D14/(IRQ6#-A)
,
PE7/D15/(IRQ7#-A)
The pin function is switched as shown below according to the combination of bus mode setting, the EXBE bit in
SYSCR0, the port function control register m (PFCRm) setting, and the Bj bit (j = 0 to 7) in PE.DDR.
Module Name
Pin Function
Setting
Bus Controller
I/O Port
Dn_E (n = 8 to 15)
PE.DDR.Bn
Bus controller
Data I/O
*
1
I/O port
PEn output
0
1
PEn input (initial value) 0
0
Note:
*
The function is enabled in expansion mode with on-chip ROM disabled or disabled (SYSCR0.EXBE = 1).
These pins function as data I/O pins (D15 to D8) in 16-bit bus mode (indicated as 1 in the above table), and as
general I/O pins in the other modes (indicated as 0 in the above table).