UPD78F0500MC-5A4-A Renesas Electronics America, UPD78F0500MC-5A4-A Datasheet - Page 564

• Manufacturer Part Number: UPD78F0500MC-5A4-A
• Description: MCU 8BIT FLASH SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0500MC-5A4-A

• 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: 23
• 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
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
Symbol
IICF0
Address: FFABH
Note Bits 6 and 7 are read-only.
Cautions 1. Write to STCEN bit only when the operation is stopped (IICE0 = 0).
Remark
Condition for clearing (IICRSV = 0)
Condition for clearing (STCEN = 0)
Condition for clearing (STCF = 0)
Condition for clearing (IICBSY = 0)
IICBSY
STCEN
IICRSV
STCF
STCF
Cleared by instruction
Reset
Detection of start condition
Reset
<7>
Cleared by STT0 = 1
When IICE0 = 0 (operation stop)
Reset
Detection of stop condition
When IICE0 = 0 (operation stop)
Reset
0
1
0
1
0
1
0
1
2. As the bus release status (IICBSY = 0) is recognized regardless of the actual bus status
3. Write to IICRSV bit only when the operation is stopped (IICE0 = 0).
STT0: Bit 1 of IIC control register 0 (IICC0)
IICE0: Bit 7 of IIC control register 0 (IICC0)
Generate start condition
Start condition generation unsuccessful: clear STT0 flag
Bus release status (communication initial status when STCEN = 1)
Bus communication status (communication initial status when STCEN = 0)
After operation is enabled (IICE0 = 1), enable generation of a start condition upon detection of
a stop condition.
After operation is enabled (IICE0 = 1), enable generation of a start condition without detecting
a stop condition.
Enable communication reservation
Disable communication reservation
IICBSY
when STCEN = 1, when generating the first start condition (STT0 = 1), it is necessary to
verify that no third party communications are in progress in order to prevent such
communications from being destroyed.
After reset: 00H
<6>
Figure 18-7. Format of IIC Flag Register 0 (IICF0)
5
0
R/W
Communication reservation function disable bit
4
0
Note
3
0
Initial start enable trigger
I
2
C bus status flag
STT0 clear flag
Condition for setting (STCF = 1)
Condition for setting (IICBSY = 1)
Condition for setting (STCEN = 1)
Condition for setting (IICRSV = 1)
2
0
disabled (IICRSV = 1).
Set by instruction
Generating start condition unsuccessful and STT0
Detection of start condition
Setting of IICE0 bit when STCEN = 0
Set by instruction
bit cleared to 0 when communication reservation is
CHAPTER 18 SERIAL INTERFACE IIC0
STCEN
<1>
IICRSV
<0>
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