UPD78F0513AGB-GAF-AX Renesas Electronics America, UPD78F0513AGB-GAF-AX Datasheet - Page 590
UPD78F0513AGB-GAF-AX
Manufacturer Part Number
UPD78F0513AGB-GAF-AX
Description
MCU 8BIT 44-LQFP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2r
Datasheet
1.UPD78F0500MC-5A4-A.pdf
(982 pages)
Specifications of UPD78F0513AGB-GAF-AX
Core Processor
78K/0
Core Size
8-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
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
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
(3) Slave operation
The processing procedure of the slave operation is as follows.
Basically, the slave operation is event-driven. Therefore, processing by the INTIIC0 interrupt (processing that must
substantially change the operation status such as detection of a stop condition during communication) is
necessary.
In the following explanation, it is assumed that the extension code is not supported for data communication. It is
also assumed that the INTIIC0 interrupt servicing only performs status transition processing, and that actual data
communication is performed by the main processing.
Therefore, data communication processing is performed by preparing the following three flags and passing them to
the main processing instead of INTIIC0.
<1> Communication mode flag
<2> Ready flag
<3> Communication direction flag
This flag indicates the following two communication statuses.
• Clear mode:
• Communication mode: Status in which data communication is performed (from valid address detection to
This flag indicates that data communication is enabled. Its function is the same as the INTIIC0 interrupt for
ordinary data communication. This flag is set by interrupt servicing and cleared by the main processing.
Clear this flag by interrupt servicing when communication is started. However, the ready flag is not set by
interrupt servicing when the first data is transmitted. Therefore, the first data is transmitted without the flag
being cleared (an address match is interpreted as a request for the next data).
This flag indicates the direction of communication. Its value is the same as TRC0.
IIC0
Status in which data communication is not performed
stop condition detection, no detection of ACK from master, address mismatch)
INTIIC0
Setting
Interrupt servicing
Setting
Data
CHAPTER 18 SERIAL INTERFACE IIC0
Flag
Main processing
590
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