r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 213

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
14. I/O Ports
14.1
Table 14.1
Notes:
P0, P3, P5_0 to P5_4,
P5_6, P5_7, P6, and
P8_0 to P8_6
P1, P2
P4_3
P4_4
P4_6
P4_2
There are 59 I/O ports P0 to P3, P4_3 to P4_7, P5_0 to P5_4, P5_6, P5_7, P6, and P8_0 to P8_6. (P4_3 and P4_4
can be used as I/O ports if the XCIN clock oscillation circuit is not used. P4_6 and P4_7 can be used as I/O ports if
the XIN clock oscillation circuit is not used.)
If the A/D converter is not used, P4_2 can be used as an input-only port.
Table 14.1 lists the I/O Port Overview.
1. In input mode, whether an internal pull-up resistor is connected or not can be selected by registers PUR0 to
2. Whether the drive capacity of the output transistor is set to low or high can be selected by registers DRR0 to
3. The input threshold value can be selected from three voltage levels (0.35 VCC, 0.50 VCC, and 0.70 VCC) using
4. Whether the drive capacity of the output transistor is set to low or high can be selected by registers P1DRR and
5. When the XCIN clock oscillation circuit is not used, these ports can be used as I/O ports.
6. When the XIN clock oscillation circuit is not used, these ports can be used as I/O ports.
7. When the A/D converter is not used, this port can be used as an input-only port.
(5)
(5)
(6)
(7)
PUR2.
DRR2.
registers VLT0 to VLT2.
P2DRR.
Overview
, P4_5,
, P4_7
Ports
(6)
Preliminary document
Specifications in this document are tentative and subject to change.
I/O Port Overview
I/O
I/O
I/O
I/O
I/O
I
CMOS3
state
CMOS3
state
CMOS3
state
CMOS3
state
(No
output
function)
Output
Type
Set in 1-bit units Set in 4-bit units
Set in 1-bit units Set in 4-bit units
Set in 1-bit units Set in 1-bit units
Set in 1-bit units Set in 4-bit units
None
I/O Setting
(1)
(1)
(1)
(1)
None
Internal Pull-Up
Resister
Set in 4-bit units
(2)
Set in 1-bit units
(4)
Set in 1-bit units
(2)
Set in 4-bit units
(2)
None
Drive Capacity
Switch
Set in 8-bit units
(3)
Set in 8-bit units
(3)
Set in 6-bit units
(3)
Page 182 of 725
Input Level
Switch
14. I/O Ports