HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 448
HD64F7051SFJ20V
Manufacturer Part Number
HD64F7051SFJ20V
Description
MCU 5V 256K J-TEMP PB-FREE QFP-1
Manufacturer
Renesas Electronics America
Series
SuperH® SH7050r
Datasheet
1.HD64F7050SFJ20V.pdf
(843 pages)
Specifications of HD64F7051SFJ20V
Core Processor
SH-2
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, WDT
Number Of I /o
102
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
10K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
168-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F7051SFJ20V
Manufacturer:
RENESAS
Quantity:
101
Part Number:
HD64F7051SFJ20V
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 448 of 843
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Section 13 Serial Communication Interface (SCI)
13.5
Sections 13.5.1 through 13.5.9 provide information for using the SCI.
13.5.1
The TDRE bit in the serial status register (SSR) is a status flag indicating loading of transmit data
from TDR into TSR. The SCI sets TDRE to 1 when it transfers data from TDR to TSR. Data can
be written to TDR regardless of the TDRE bit status. If new data is written in TDR when TDRE is
0, however, the old data stored in TDR will be lost because the data has not yet been transferred to
the TSR. Before writing transmit data to the TDR, be sure to check that TDRE is set to 1.
13.5.2
Table 13.13 indicates the state of the SSR status flags when multiple receive errors occur
simultaneously. When an overrun error occurs, the RSR contents cannot be transferred to the
RDR, so receive data is lost.
Table 13.13 SSR Status Flags and Transfer of Receive Data
Note: O = Receive data is transferred from RSR to RDR.
Rev. 5.00 Jan 06, 2006 page 426 of 818
REJ09B0273-0500
Receive Error Status
Overrun error
Framing error
Parity error
Overrun error + framing error
Overrun error + parity error
Framing error + parity error
Overrun error + framing error + parity
error
X = Receive data is not transferred from RSR to RDR.
Notes on Use
TDR Write and TDRE Flags
Simultaneous Multiple Receive Errors
RDRF
1
0
0
1
1
0
1
ORER
1
0
0
1
1
0
1
SSR Status Flags
FER
0
1
0
1
0
1
1
PER
0
0
1
0
1
1
1
Receive Data
Transfer
RSR
X
O
O
X
X
O
X
RDR
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