HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 628
HD6417712BPV
Manufacturer Part Number
HD6417712BPV
Description
MPU 1.5/3.3V 0K PB-FREE 256-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH Ethernetr
Datasheet
1.HD6417712BPV.pdf
(980 pages)
Specifications of HD6417712BPV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, FIFO, SCI, SIO
Peripherals
DMA, POR, WDT
Number Of I /o
24
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
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:
HD6417712BPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 16 Serial Communication Interface with FIFO (SCIF)
Break Detection and Processing: Break signals can be detected by reading the RxD pin directly
when a framing error (FER) is detected. In the break state the input from the RxD pin consists of
all 0s, so the FER flag is set and the parity error flag (PER) may also be set.
Although the SCIF stops transferring receive data to SCFRDR after receiving a break, the receive
operation continues.
Receive Data Sampling Timing and Receive Margin in Asynchronous Mode: In asynchronous
mode, the SCIF operates on a base clock with a frequency of 16 times the transfer rate.
In reception, the SCIF synchronizes internally with the fall of the start bit, which it samples on the
base clock. Receive data is latched at the rising edge of the eighth base clock pulse. The timing is
shown in figure 16.19.
The receive margin in asynchronous mode can therefore be expressed as shown in equation (1).
Rev. 1.00 Dec. 27, 2005 Page 584 of 932
REJ09B0269-0100
Base clock
Receive data
(RxD)
Synchronization
sampling timing
Data sampling
timing
M = 0.5 –
M:
N:
D:
L:
F:
Figure 16.19 Receive Data Sampling Timing in Asynchronous Mode
Receive margin (%)
Ratio of clock frequency to bit rate (N = 16)
Clock duty cycle (D = 0 to 1.0)
Frame length (L = 9 to 12)
Absolute deviation of clock frequency
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 4 5
2N
1
Start bit
8 clocks
– (L – 0.5)F –
16 clocks
–7.5 clocks
D – 0.5
N
(1 + F) × 100%
+7.5 clocks
D0
..................... (1)
D1
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