HD6473937RXV Renesas Electronics America, HD6473937RXV Datasheet - Page 322
HD6473937RXV
Manufacturer Part Number
HD6473937RXV
Description
MCU 3/5V 60K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300L SLPr
Datasheet
1.HD6473937RXV.pdf
(523 pages)
Specifications of HD6473937RXV
Core Processor
H8/300L
Core Size
8-Bit
Speed
10MHz
Connectivity
SCI
Peripherals
POR, WDT
Number Of I /o
59
Program Memory Size
60KB (60K x 8)
Program Memory Type
OTP
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 8x10b
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
-
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Part Number:
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10.3.4
SCI3 can generate six kinds of interrupts: transmit end, transmit data empty, receive data full, and
three receive error interrupts (overrun error, framing error, and parity error). These interrupts have
the same vector address.
The various interrupt requests are shown in table 10-16.
Table 10-16 SCI3 Interrupt Requests
Interrupt
Abbreviation
RXI
TXI
TEI
ERI
Each interrupt request can be enabled or disabled by means of bits TIE and RIE in SCR3.
When bit TDRE is set to 1 in SSR, a TXI interrupt is requested. When bit TEND is set to 1 in
SSR, a TEI interrupt is requested. These two interrupts are generated during transmission.
The initial value of bit TDRE in SSR is 1. Therefore, if the transmit data empty interrupt request
(TXI) is enabled by setting bit TIE to 1 in SCR3 before transmit data is transferred to TDR, a TXI
interrupt will be requested even if the transmit data is not ready.
Also, the initial value of bit TEND in SSR is 1. Therefore, if the transmit end interrupt request
(TEI) is enabled by setting bit TEIE to 1 in SCR3 before transmit data is transferred to TDR, a TEI
interrupt will be requested even if the transmit data has not been sent.
Effective use of these interrupt requests can be made by having processing that transfers transmit
data to TDR carried out in the interrupt service routine.
To prevent the generation of these interrupt requests (TXI and TEI), on the other hand, the enable
bits for these interrupt requests (bits TIE and TEIE) should be set to 1 after transmit data has been
transferred to TDR.
When bit RDRF is set to 1 in SSR, an RXI interrupt is requested, and if any of bits OER, PER, and
FER is set to 1, an ERI interrupt is requested. These two interrupt requests are generated during
reception.
For further details, see 3.3, Interrupts.
308
Interrupts
Interrupt Request
Interrupt request initiated by receive data full flag (RDRF)
Interrupt request initiated by transmit data empty flag (TDRE)
Interrupt request initiated by transmit end flag (TEND)
Interrupt request initiated by receive error flag (OER, FER, PER)
Vector Address
H'0022/H'0024
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