UPD78F0555MA-FAA-AX Renesas Electronics America, UPD78F0555MA-FAA-AX Datasheet - Page 509
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
-
- Current page: 509 of 822
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78K0/Kx2-L
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Remarks 1. Bit 1 (STT0) becomes 0 when it is read after data setting.
Note The signal of this bit is invalid while IICE0 is 0.
Cautions concerning set timing
• For master reception:
• For master transmission: A start condition cannot be generated normally during the acknowledge period. Set to 1
• Cannot be set to 1 at the same time as stop condition trigger (SPT0).
• Setting the STT0 bit to 1 and then setting it again before it is cleared to 0 is prohibited.
Condition for clearing (STT0 = 0)
• Cleared by setting the STT0 bit to 1 while
• Cleared by loss in arbitration
• Cleared after start condition is generated by master
• Cleared by LREL0 = 1 (exit from communications)
• When IICE0 = 0 (operation stop)
• Reset
STT0
device
communication reservation is prohibited.
0
1
Note
2. IICRSV: Bit 0 of IICA flag register 0 (IICAF0)
Do not generate a start condition.
When bus is released (in standby state, when IICBSY = 0):
When a third party is communicating:
In the wait state (when master device):
Generates a restart condition after releasing the wait.
If this bit is set (1), a start condition is generated (startup as the master).
• When communication reservation function is enabled (IICRSV = 0)
• When communication reservation function is disabled (IICRSV = 1)
STCF:
Figure 15-5. Format of IICA Control Register 0 (IICACTL0) (3/4)
Functions as the start condition reservation flag. When set to 1, automatically generates a start
condition after the bus is released.
Even if this bit is set (1), the STT0 bit is cleared and the STT0 clear flag (STCF) is set (1). No start
condition is generated.
Bit 7 of IICA flag register 0 (IICAF0)
Cannot be set to 1 during transfer. Can be set to 1 only in the waiting period when
ACKE0 has been cleared to 0 and slave has been notified of final reception.
during the wait period that follows output of the ninth clock.
Start condition trigger
Condition for setting (STT0 = 1)
• Set by instruction
CHAPTER 15 SERIAL INTERFACE IICA
495
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