HD6417708RF100A Renesas Electronics America, HD6417708RF100A Datasheet - Page 439

• Manufacturer Part Number: HD6417708RF100A
• Description: IC SUPERH MPU ROMLESS 144LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708RF100A

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3.15 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

The receive margin is found from the following equation:
For smart card mode:
Where:
M = Receive margin (%)
N = Ratio of bit rate to clock (N = 372)
D = Clock duty (D = 0 to 1.0)
L = Frame length (L = 10)
F = Absolute value of clock frequency deviation
Using this equation, the receive margin when F = 0 and D = 0.5 is as follows:
Base clock
data (RxD)
Synchro-
sampling
sampling
Receive
nization
timing
timing
M = (0.5 – 1/2
M = (0.5 –
Data
Figure 14.8 Receive Data Sampling Timing in Smart Card Mode
0
186 clock cycles
2N
1
)
372 clock cycles
372)
– (L – 0.5)F –
Start
bit
185
100% = 49.866%
D – 0.5
N
371 0
(1 + F)
100%
D0
185
371 0
D1
419