HD6417020SVX12IV Renesas Electronics America, HD6417020SVX12IV Datasheet - Page 361
HD6417020SVX12IV
Manufacturer Part Number
HD6417020SVX12IV
Description
MCU 3/5V 0K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
Specifications of HD6417020SVX12IV
Core Processor
SH-1
Core Size
32-Bit
Speed
12.5MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417020SVX12IV
Manufacturer:
RENESAS
Quantity:
63
Company:
Part Number:
HD6417020SVX12IV
Manufacturer:
Renesas Electronics America
Quantity:
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13.2
13.2.1
The receive shift register (RSR) receives serial data. Data input at the RxD pin are loaded into the
RSR in the order received, LSB (bit 0) first. In this way the SCI converts received data to parallel
form. When one byte has been received, it is automatically transferred to the receive data register
(RDR). The CPU cannot read or write the RSR directly.
13.2.2
The receive data register (RDR) stores serial receive data. The SCI completes the reception of one
byte of serial data by moving the received data from the receive shift register (RSR) into the RDR
for storage. The RSR is then ready to receive the next data. This double buffering allows the SCI
to receive data continuously.
The CPU can read but not write the RDR. The RDR is initialized to H'00 by a reset or in standby
mode.
13.2.3
The transmit shift register (TSR) transmits serial data. The SCI loads transmit data from the
transmit data register (TDR) into the TSR, then transmits the data serially from the TxD pin, LSB
(bit 0) first. After transmitting one data byte, the SCI automatically loads the next transmit data
from the TDR into the TSR and starts transmitting again. If the TDRE bit of the SSR is 1,
however, the SCI does not load the TDR contents into the TSR. The CPU cannot read or write the
TSR directly.
RENESAS 344
Initial value:
Bit name:
Bit name:
Bit name:
Register Descriptions
Receive Shift Register
Receive Data Register
Transmit Shift Register
R/W:
R/W:
R/W:
Bit:
Bit:
Bit:
—
—
7
7
0
R
7
—
—
6
6
0
R
6
—
—
5
5
0
R
5
—
—
4
4
0
R
4
—
—
3
3
0
R
3
—
—
2
2
0
R
2
—
—
1
1
0
R
1
—
—
0
0
0
R
0
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