HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 684

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 18 Serial Communication Interface with FIFO (SCIF)
In serial reception, the SCIF operates as described below.
1. The SCIF monitors the transmission line, and if a 0 start bit is detected, performs internal
2.
3. The parity bit and stop bit are received.
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synchronization and starts reception.
After receiving these bits, the SCIF carries out the following checks.
A. Stop bit check: The SCIF checks whether the stop bit is 1. If there are two stop bits, only
B. The SCIF checks whether receive data can be transferred from the receive shift register
C. Break check: The SCIF checks that the BRK flag is 0, indicating that the break state is not
The received data is stored in SCRSR in LSB-to-MSB order.
the first is checked.
(SCRSR) to SCFRDR.
set.
No
No
No
Read receive data in SCFRDR
Clear DR, ER, BRK flags in
Receive error processing
Figure 18.8 Sample Serial Reception Flowchart (2)
Break processing
Error processing
SCSSR to 0
BRK= 1?
ER = 1?
DR= 1?
End
Yes
Yes
1. Whether a framing error or parity error has
2. When a break signal is received, receive data
occurred in the receive data read from
SCFRDR can be ascertained from the FER and
PER bits in SCSSR.
is not transferred to SCFRDR while the BRK
flag is set. However, note that the last data in
SCFRDR is H'00 and the break data in which a
framing error occurred is stored.
SH7720 Group, SH7721 Group
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010