HD6417020SVX12IV Renesas Electronics America, HD6417020SVX12IV Datasheet - Page 413
HD6417020SVX12IV
Manufacturer Part Number
HD6417020SVX12IV
Description
MCU 3/5V 0K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
Specifications of HD6417020SVX12IV
Core Processor
SH-1
Core Size
32-Bit
Speed
12.5MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417020SVX12IV
Manufacturer:
RENESAS
Quantity:
63
Company:
Part Number:
HD6417020SVX12IV
Manufacturer:
Renesas Electronics America
Quantity:
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The receive margin in the asynchronous mode can therefore be expressed as in equation 1.
Equation 1:
From equation (1), if F = 0 and D = 0.5 the receive margin is 46.875%, as given by equation 2.
Equation 2:
This is a theoretical value. A reasonable margin to allow in system designs is 20–30%.
Constraints on DMAC Use:
RENESAS 396
Synchronization
data (RxD)
base clock
sampling
sampling
M =
M:
N:
D:
L:
F:
D
M
Receive
Internal
timing
timing
Figure 13.21 Receive Data Sampling Timing in Asynchronous Mode
Data
0.5 –
Receive margin (%)
Ratio of clock frequency to bit rate (N = 16)
Clock duty cycle (D = 0–1.0)
Frame length (L = 9–12)
Absolute deviation of clock frequency
= 0.5, F = 0
= (0.5 – 1/(2
= 46.875%
0 1 2 3 4 5 6 7 8 9 10111213 1415 0 1 2 3 4 5 6 7 8 9 10111213 1415 0 1 2 3 4 5
2N
8 clocks
Start bit
1
– (L – 0.5)F –
16 clocks
16))
(2)
100%
–7.5 clocks
D
–
N
0.5
+7.5 clocks
(1 + F )
D0
100%
D1
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