HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 268
HD6473834HV
Manufacturer Part Number
HD6473834HV
Description
MCU 5V 32K PB-FREE 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet
1.HD6473837HV.pdf
(562 pages)
Specifications of HD6473834HV
Core Processor
H8/300L
Core Size
8-Bit
Speed
5MHz
Connectivity
SCI
Peripherals
LCD, PWM
Number Of I /o
71
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
HD6473834HV
Manufacturer:
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Quantity:
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Serial data is input in LSB (bit 0) order into RSR from pin RXD, converting it to parallel data.
After each byte of data has been received, the byte is automatically transferred to the receive data
register (RDR).
RSR cannot be read or written directly by the CPU.
Receive Data Register (RDR)
The receive data register (RDR) is an 8-bit register for storing received serial data.
Each time a byte of data is received, the received data is transferred from the receive shift register
(RSR) to RDR, completing a receive operation. Thereafter RSR again becomes ready to receive
new data. RSR and RDR form a double buffer mechanism that allows data to be received
continuously.
RDR is exclusively for receiving data and cannot be written by the CPU.
RDR is initialized to H'00 upon reset or in standby mode, watch mode, subactive mode, or
subsleep mode.
Transmit Shift Register (TSR)
The transmit shift register (TSR) is for transmitting serial data.
Transmit data is first transferred from the transmit data register (TDR) to TSR, then is transmitted
from pin TXD, starting from the LSB (bit 0).
After one byte of data has been sent, the next byte is automatically transferred from TDR to TSR,
and the next transmission begins. If no data has been written to TDR (1 is set in TDRE), there is
no data transfer from TDR to TSR.
TSR cannot be read or written directly by the CPU.
Bit
Initial value
Read/Write
Bit
Read/Write
RDR7
—
R
7
0
7
RDR6
—
R
6
0
6
RDR5
—
R
5
0
5
RDR4
—
R
4
0
4
RDR3
—
R
3
0
3
RDR2
—
R
2
0
2
RDR1
—
R
1
0
1
RDR0
—
R
0
0
0
251
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