HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 520
![MCU 5V 512K,PB-FREE 100-TQFP](/photos/28/61/286123/100-tqfp__100-vqfp_sml.jpg)
HD64F3029XBL25V
Manufacturer Part Number
HD64F3029XBL25V
Description
MCU 5V 512K,PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3029X25.pdf
(1012 pages)
Specifications of HD64F3029XBL25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
16K 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
-
- Current page: 520 of 1012
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In transmitting serial data, the SCI operates as follows:
TDRE
TEND
The SCI monitors the TDRE flag in SSR. When the TDRE flag is cleared to 0, the SCI
recognizes that TDR contains new data, and loads this data from TDR into TSR.
After loading the data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts
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:
The SCI checks the TDRE flag when it outputs the stop bit. If the TDRE flag is 0, the SCI
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
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
bit is output. Formats in which neither a parity bit nor a multiprocessor bit is output can
also be selected.
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.
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
Rev. 2.0, 06/04, page 491 of 980
Data
D7
Parity
bit
0/1
TEI interrupt
request
Stop
bit
Idle state
(mark state)
1
1
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