UPD78F1142AF1-AN1-A Renesas Electronics America, UPD78F1142AF1-AN1-A Datasheet - Page 505
UPD78F1142AF1-AN1-A
Manufacturer Part Number
UPD78F1142AF1-AN1-A
Description
MCU 16BIT 78K0R/KX3 64-FBGA
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1142AGA-HAB-AX.pdf
(880 pages)
Specifications of UPD78F1142AF1-AN1-A
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K 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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1142AF1-AN1-A
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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12.5.13 Arbitration
to 1), communication among the master devices is performed as the number of clocks are adjusted until the data
differs. This kind of operation is called arbitration.
is set (1) via the timing by which the arbitration loss occurred, and the SCL0 and SDA0 lines are both set to high
impedance, which releases the bus.
stop condition is detected, etc.) and the ALD0 = 1 setting that has been made by software.
control.
Transfer lines
When several master devices simultaneously generate a start condition (when STT0 is set to 1 before STD0 is set
When one of the master devices loses in arbitration, an arbitration loss flag (ALD0) in IIC status register 0 (IICS0)
The arbitration loss is detected based on the timing of the next interrupt request (the eighth or ninth clock, when a
For details of interrupt request timing, see 12.5.9
Remark
Master 1
Master 2
SDA0
SDA0
SDA0
SCL0
SCL0
SCL0
STD0: Bit 1 of IIC status register 0 (IICS0)
STT0: Bit 1 of IIC control register 0 (IICC0)
Figure 12-20. Arbitration Timing Example
CHAPTER 12 SERIAL INTERFACE IIC0
User’s Manual U17854EJ9V0UD
Interrupt request (INTIIC0) generation timing and wait
Master 1 loses arbitration
Hi-Z
Hi-Z
503
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