UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 602
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UPD78F1506GF-GAT-AX
Manufacturer Part Number
UPD78F1506GF-GAT-AX
Description
MCU 16BIT 78K0R/LX3 128-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Lx3r
Datasheet
1.UPD78F1500GK-GAK-AX.pdf
(1016 pages)
Specifications of UPD78F1506GF-GAT-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LCD, LVD, POR, PWM, WDT
Number Of I /o
78
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 12x12b, D/A 2x12b
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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- Download datasheet (7Mb)
<R>
78K0R/Lx3
15.4.2 Setting transfer clock by using IICWL and IICWH registers
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
(1) Setting transfer clock on master side
(2) Setting IICWL and IICWH on slave side
Caution Note the minimum f
Remarks 1. Calculate the rise time (t
At this time, the optimal setting values of IICWL and IICWH are as follows.
(The fractional parts of all setting values are rounded up.)
• When the fast mode
• When the standard mode
(The fractional parts of all setting values are truncated.)
• When the fast mode
• When the standard mode
Transfer clock =
IICWL =
IICWH = (
IICWL =
IICWH = (
IICWL = 1.3
IICWH = (1.2
IICWL = 4.7
IICWH = (5.3
operation frequency for serial interface IICA is determined according to the mode.
2. IICWL: IICA low-level width setting register
Standard mode:
Fast mode:
differ depending on the pull-up resistance and wire load.
IICWH: IICA high-level width setting register
t
t
f
F
R
CLK
:
:
Transfer clock
Transfer clock
Transfer clock
Transfer clock
:
μ
μ
IICWL + IICWH + f
μ
μ
s × f
s × f
0.52
0.47
s − t
s − t
SDA0 and SCL0 signal falling times
SDA0 and SCL0 signal rising times
0.48
0.53
CPU/peripheral hardware clock frequency
CLK
CLK
R
R
− t
− t
F
F
) × f
) × f
CLK
× f
× f
f
f
f
− t
− t
CLK
CLK
CLK
CLK
CLK
CLK
CLK
R
R
operation frequency when setting the transfer clock. The minimum f
− t
− t
= 3.5 MHz (MIN.)
= 1 MHz (MIN.)
CLK
R
F
F
) and fall time (t
) × f
) × f
(t
R
CLK
CLK
+ t
F
)
F
) of the SDA0 and SCL0 signals separately, because they
CHAPTER 15 SERIAL INTERFACE IICA
602
CLK
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