UPD78F0555MA-FAA-AX Renesas Electronics America, UPD78F0555MA-FAA-AX Datasheet - Page 199
UPD78F0555MA-FAA-AX
Manufacturer Part Number
UPD78F0555MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0551MA-FAA-AX.pdf
(822 pages)
Specifications of UPD78F0555MA-FAA-AX
Core Processor
78K/0
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
9
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
384 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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78K0/Kx2-L
4.4 Port Function Operations
4.4.1 Writing to I/O port
(1) Output mode
(2) Input mode
4.4.2 Reading from I/O port
(1) Output mode
(2) Input mode
4.4.3 Operations on I/O port
(1) Output mode
(2) Input mode
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Port operations differ depending on whether the input or output mode is set, as shown below.
A value is written to the output latch by a transfer instruction, and the output latch contents are output from the pin.
Once data is written to the output latch, it is retained until data is written to the output latch again.
The data of the output latch is cleared when a reset signal is generated.
A value is written to the output latch by a transfer instruction, but since the output buffer is off, the pin status does not
change.
Once data is written to the output latch, it is retained until data is written to the output latch again.
The data of the output latch is cleared when a reset signal is generated.
The output latch contents are read by a transfer instruction. The output latch contents do not change.
The pin status is read by a transfer instruction. The output latch contents do not change.
An operation is performed on the output latch contents, and the result is written to the output latch. The output latch
contents are output from the pins.
Once data is written to the output latch, it is retained until data is written to the output latch again.
The data of the output latch is cleared when a reset signal is generated.
The pin level is read and an operation is performed on its contents. The result of the operation is written to the output
latch, but since the output buffer is off, the pin status does not change.
The data of the output latch is cleared when a reset signal is generated.
CHAPTER 4 PORT FUNCTIONS
185
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