HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 539
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
-
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13.4
The SCI has four interrupt request sources: the transmit-end interrupt (TEI), receive-error
interrupt (ERI), receive-data-full interrupt (RXI), and transmit-data-empty interrupt (TXI). Table
13.12 lists the interrupt sources and indicates their priority. These interrupts can be enabled or
disabled by the TIE, RIE, and TEIE bits in SCR. Each interrupt request is sent separately to the
interrupt controller.
A TXI interrupt is requested when the TDRE flag is set to 1 in SSR. A TEI interrupt is requested
when the TEND flag is set to 1 in SSR. A TXI interrupt request can activate the DMAC to transfer
data. Data transfer by the DMAC automatically clears the TDRE flag to 0. A TEI interrupt request
cannot activate the DMAC.
An RXI interrupt is requested when the RDRF flag is set to 1 in SSR. An ERI interrupt is
requested when the ORER, PER, or FER flag is set to 1 in SSR. An RXI interrupt can activate the
DMAC to transfer data. Data transfer by the DMAC automatically clears the RDRF flag to 0. An
ERI interrupt request cannot activate the DMAC.
The DMAC can be activated by interrupts from SCI channel 0.
Table 13.12 SCI Interrupt Sources
Interrupt Source
ERI
RXI
TXI
TEI
13.5
13.5.1
Note the following points when using the SCI.
TDR Write and TDRE Flag: The TDRE flag in SSR is a status flag indicating the loading of
transmit data from TDR to TSR. The SCI sets the TDRE flag to 1 when it transfers data from
TDR to TSR.
Data can be written into TDR regardless of the state of the TDRE flag. If new data is written in
TDR when the TDRE flag is 0, the old data stored in TDR will be lost because this data has not
yet been transferred to TSR. Before writing transmit data in TDR, be sure to check that the TDRE
flag is set to 1.
Rev. 2.0, 06/04, page 510 of 980
SCI Interrupts
Usage Notes
Notes on Use of SCI
Description
Receive error (ORER, FER, or PER)
Receive data register full (RDRF)
Transmit data register empty (TDRE)
Transmit end (TEND)
Priority
High
Low
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