RA8911
Version 1.5
8-Bit Micro-Controller
Bit-7 of Port 2
PT2_7
This is a programmable pin for general-purpose I/O Port 2. The driving current
and pull-high or pull-low can be selected by user register.
I/O
I/O
I/O
I/O
I/O
The PT2_7 is also as the output of PWM. In PWM mode, the pin is always
output and 72mA-driving current is selected.
Bit-6 of Port 2
This is a programmable pin for general-purpose I/O Port 2. The driving current
and pull-high or pull-low can be selected by user register.
PWM1
PT2_6
The PT2_6 is also as the output of PWM. In PWM mode, the pin is always
output and 72mA-driving current is selected.
Bit-5 of Port 2
This is a programmable pin for general-purpose I/O Port 2. The driving current
and pull-high or pull-low can be selected by user register.
PWM2
PT2_5
The PT2_5 is also as the write control of register $101E. If the write register
$101F enabled, the pin is always output except the power saving mode.
Bit-4 of Port 2
This is a programmable pin for general-purpose I/O Port 2. The driving current
and pull-high or pull-low can be selected by user register.
EXP_WR#
PT2_4
The PT2_4 is also as the secondary external flash chip select. If the secondary
flash is enabled, the pin is always output except the power saving mode.
Bit-3 of Port 2
This is a programmable pin for general-purpose I/O Port 2. The driving current
and pull-high or pull-low can be selected by user register.
FL_CE2#
PT2_3
The PT2_3 is also as the output of LVD. If the LVD enabled, the pin is always
output except the power saving mode.
Bit-2 of Port 2
This is a programmable pin for general-purpose I/O Port 2. The driving current
and pull-high or pull-low can be selected by user register.
LVD_#
PT2_2
I/O
I/O
The PT2_2 is also as the external memory write enable. If the external memory
enabled, the pin is always output except the power saving mode. If
REG[1032h] bit6 is set as 1, and then MEM_WE# and FL_WE# can be jointly
used.
MEM_WE#
PT2_1
Bit-1 of Port 2
This is a programmable pin for general-purpose I/O Port 2. The driving current
and pull-high or pull-low can be selected by user register.
The PT2_1 is also as the external memory output enabling. If the external
memory enabled, the pin is always output except the power saving mode. If
REG[1032h] bit6 is set as 1, and then MEM_OE# and FL_OE# can be jointly
used.
MEM_OE#
PT2_0
Bit-0 of Port 2
This is a programmable pin for general-purpose I/O Port 2. The driving current
and pull-high or pull-low can be selected by user register.
I/O
I/O
The PT2_0 is also as the external memory chip selecting. If the external
memory enabled, the pin is always output except the power saving mode.
Bit-7 of Port 3
This is a programmable pin for general-purpose I/O Port 3. The driving current
and pull-high or pull-low can be selected by user register.
MEM_CE#
PT3_7
6/10
RAiO TECHNOLOGY INC.
www.raio.com.tw
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