DF3026X25V Renesas Electronics America, DF3026X25V Datasheet - Page 397
![MCU 3V 256K PB-FREE 100-TQFP](/photos/28/61/286123/100-tqfp__100-vqfp_sml.jpg)
DF3026X25V
Manufacturer Part Number
DF3026X25V
Description
MCU 3V 256K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3026X25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
PWM, WDT
Number Of I /o
70
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 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:
DF3026X25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 397 of 843
- Download datasheet (5Mb)
12.2.3
TSR is the register that transmits serial data.
The SCI loads transmit data from TDR to TSR, then transmits the data serially from the TxD pin,
LSB (bit 0) first. After transmitting one data byte, the SCI automatically loads the next transmit
data from TDR into TSR and starts transmitting it. If the TDRE flag is set to 1 in SSR, however,
the SCI does not load the TDR contents into TSR. The CPU cannot read or write RSR directly.
12.2.4
TDR is an 8-bit register that stores data for serial transmission.
When the SCI detects that TSR is empty, it moves transmit data written in TDR from TDR into
TSR and starts serial transmission. Continuous serial transmission is possible by writing the next
transmit data in TDR during serial transmission from TSR.
The CPU can always read and write TDR. TDR is initialized to H'FF by a reset and in standby
mode.
Bit
Bit
Initial value
Read/Write
Read/Write
Transmit Shift Register (TSR)
Transmit Data Register (TDR)
R/W
—
7
7
1
R/W
—
1
6
6
R/W
—
5
5
1
R/W
—
4
1
4
Section 12 Serial Communication Interface
Rev. 2.00 Sep 20, 2005 page 357 of 800
R/W
—
3
3
1
R/W
—
2
2
1
REJ09B0260-0200
R/W
—
1
1
1
R/W
—
0
0
1
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