UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 501

• Manufacturer Part Number: UPD78F0551MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0551MA-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: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 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: -

78K0/Kx2-L
15.1 Functions of Serial Interface IICA
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Serial interface IICA is mounted onto all 78K0/Kx2-L microcontroller products.
Serial interface IICA has the following three modes.
(1) Operation stop mode
(2) I
(3) Wakeup mode
Figure 15-1 shows a block diagram of serial interface IICA.
This mode is used when serial transfers are not performed. It can therefore be used to reduce power consumption.
This mode is used for 8-bit data transfers with several devices via two lines: a serial clock (SCLA0) line and a serial
data bus (SDAA0) line.
This mode complies with the I
“transfer direction specification”, “data”, and “stop condition” data to the slave device, via the serial data bus. The
slave device automatically detects these received status and data by hardware. This function can simplify the part
of application program that controls the I
Since the SCLA0 and SDAA0 pins are used for open drain outputs, serial interface IICA requires pull-up resistors
for the serial clock line and the serial data bus line.
The STOP mode can be released by generating an interrupt request signal (INTIICA0) when an extension code
from the master device or a local address has been received while in STOP mode. This can be set by using the
WUP bit of the IICA control register 1 (IICACTL1).
2
C bus mode (multimaster supported)
CHAPTER 15 SERIAL INTERFACE IICA
2
C bus format and the master device can generated “start condition”, “address”,
2
C bus.
CHAPTER 15 SERIAL INTERFACE IICA
487