HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 492
HD6413007F20
Manufacturer Part Number
HD6413007F20
Description
IC H8 MCU ROMLESS 5V 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.D13007F20V.pdf
(798 pages)
Specifications of HD6413007F20
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
35
Program Memory Type
ROMless
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-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
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13. Serial Communication Interface
In transmitting serial data, the SCI operates as follows:
• The SCI monitors the TDRE flag in SSR. When the TDRE flag is cleared to 0, the SCI
• After loading the data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts
• The SCI checks the TDRE flag when it outputs the stop bit. If the TDRE flag is 0, the SCI
Rev.5.00 Sep. 12, 2007 Page 462 of 764
REJ09B0396-0500
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:
⎯ Start bit: One 0 bit is output.
⎯ Transmit data: 7 or 8 bits are output, LSB first.
⎯ Parity bit or multiprocessor bit: One parity bit (even or odd parity),or one multiprocessor
⎯ Stop bit(s): One or two 1 bits (stop bits) are output.
⎯ 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 shows an example of SCI transmit operation in asynchronous mode.
TXI interrupt
request
1
bit is output. Formats in which neither a parity bit nor a multiprocessor bit is output can
also be selected.
Figure 13.6 Example of SCI Transmit Operation in Asynchronous Mode
Start bit
0
TXI interrupt handler
writes data in TDR and
clears TDRE flag to 0
D0
D1
1 frame
(8-Bit Data with Parity and One Stop Bit)
Data
D7
Parity
bit
0/1
TXI interrupt
request
Stop
bit
1
Start
bit
0
D0
D1
Data
D7
Parity
bit
0/1
TEI interrupt
request
Stop
bit
1
Idle state
(mark state)
1
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