DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 508
![MCU 5V 128K,PB-FREE 100-TQFP](/photos/28/61/286123/100-tqfp__100-vqfp_sml.jpg)
DF3048X16V
Manufacturer Part Number
DF3048X16V
Description
MCU 5V 128K,PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3048X16V
Core Processor
H8/300H
Core Size
16-Bit
Speed
16MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3048X16V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 508 of 907
- Download datasheet (6Mb)
Section 13 Serial Communication Interface
Rev. 7.00 Sep 21, 2005 page 482 of 878
REJ09B0259-0700
Transmitting Serial Data (Asynchronous Mode)
Figure 13.5 shows a sample flowchart for transmitting serial data and indicates the procedure
to follow.
Read TDRE flag in SSR
Read TEND flag in SSR
Clear TE bit to 0 in SCR
in TDR and clear TDRE
Write transmit data
Clear DR bit to 0,
Start transmitting
set DDR bit to 1
flag to 0 in SSR
Output break
transmitted?
TDRE = 1?
TEND = 1?
Initialize
All data
signal?
Figure 13.5 Sample Flowchart for Transmitting Serial Data
End
Yes
Yes
Yes
Yes
No
No
No
No
1
2
3
4
1.
2.
3.
4.
SCI initialization: the transmit data output function
of the TxD pin is selected automatically.
SCI status check and transmit data write: read SSR,
check that the TDRE flag is 1, then write transmit data
in TDR and clear the TDRE flag to 0.
To continue transmitting serial data: after checking
that the TDRE flag is 1, indicating that data can be
written, write data in TDR, then clear the TDRE
flag to 0. When the DMAC is activated by a transmit-
data-empty interrupt request (TXI) to write data in TDR,
the TDRE flag is checked and cleared automatically.
To output a break signal at the end of serial transmission:
set the DDR bit to 1 and clear the DR bit to 0
(DDR and DR are I/O port registers), then clear the
TE bit to 0 in SCR.
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