HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 509
HD64F3048VTF8
Manufacturer Part Number
HD64F3048VTF8
Description
IC H8 MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3048F16.pdf
(907 pages)
Specifications of HD64F3048VTF8
Core Processor
H8/300H
Core Size
16-Bit
Speed
8MHz
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)
2.7 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F3048VX8
- Current page: 509 of 907
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In transmitting serial data, the SCI operates as follows.
1. The SCI monitors the TDRE flag in SSR. When the TDRE flag is cleared to 0 the SCI
2. After loading the data from TDR into TSR, the SCI sets the TDRE flag to 1 and starts
3. The SCI checks the TDRE flag when it outputs the stop bit. If the TDRE flag is 0, the SCI
Figure 13.6 shows an example of SCI transmit operation in asynchronous mode.
TDRE
TEND
recognizes that TDR contains new data, and loads this data from TDR into TSR.
transmitting. If the TIE bit is set to 1 in SCR, the SCI requests a transmit-data-empty
interrupt (TXI) at this time.
Serial transmit data is transmitted in the following order from the TxD pin:
a. Start bit: One 0 bit is output.
b. Transmit data: 7 or 8 bits are output, LSB first.
c. Parity bit or multiprocessor bit: One parity bit (even or odd parity) or one
d. Stop bit: One or two 1 bits (stop bits) are output.
e. Mark state: Output of 1 bits continues until the start bit of the next transmit data.
loads new data from TDR into TSR, outputs the stop bit, then begins serial transmission of
the next frame. If the TDRE flag is 1, the SCI sets the TEND flag to 1 in SSR, outputs the
stop bit, then continues output of 1 bits in the mark state. If the TEIE bit is set to 1 in SCR,
a transmit-end interrupt (TEI) is requested at this time.
Figure 13.6 Example of SCI Transmit Operation in Asynchronous Mode
multiprocessor bit is output. Formats in which neither a parity bit nor a
multiprocessor bit is output can also be selected.
1
TXI
interrupt
request
Start
bit
0
TXI interrupt handler
writes data in TDR and
clears TDRE flag to 0
D0
(8-Bit Data with Parity and 1 Stop Bit)
D1
1 frame
Data
D7
Parity
bit
0/1
Stop
bit
TXI
interrupt
request
1
Start
bit
0
Section 13 Serial Communication Interface
Rev. 7.00 Sep 21, 2005 page 483 of 878
D0
D1
Data
D7
TEI interrupt request
Parity
bit
0/1
Stop
bit
REJ09B0259-0700
1
Idle (mark)
state
1
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