HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 380
HD6477021X20V
Manufacturer Part Number
HD6477021X20V
Description
MCU 5V 32K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
Specifications of HD6477021X20V
Core Processor
SH-1
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
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
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6477021X20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Table 13.7 Maximum Bit Rates during External Clock Input (Clocked Synchronous Mode)
2
4
6
8
10
12
14
16
18
20
13.3
13.3.1
The SCI has an asynchronous mode in which characters are synchronized individually, and a
clocked synchronous mode in which communication is synchronized with clock pulses. Serial
communication is possible in either mode. Asynchronous/clocked synchronous mode and the
communication format are selected in the serial mode register (SMR), as shown in table 13.8. The
SCI clock source is selected by the C/A bit in the serial mode register (SMR) and the CKE1 and
CKE0 bits in the serial control register (SCR), as shown in table 13.9.
Asynchronous Mode:
•
•
•
•
(MHz)
Data length is selectable: seven or eight bits.
Parity and multiprocessor bits are selectable. So is the stop bit length (one or two bits). The
preceding selections constitute the communication format and character length.
In receiving, it is possible to detect framing errors (FER), parity errors (PER), overrun errors
(ORER), and the break state.
An internal or external clock can be selected as the SCI clock source.
When an internal clock is selected, the SCI operates using the on-chip baud rate generator,
When an external clock is selected, the external clock input must have a frequency 16 times
and can output a serial clock signal with a frequency matching the bit rate.
the bit rate. (The on-chip baud rate generator is not used.)
Operation
Overview
External Input Clock (MHz)
0.3333
0.6667
1.0000
1.3333
1.6667
2.0000
2.3333
2.6667
3.0000
3.3333
Maximum Bit Rate (bits/s)
333333.3
666666.7
1000000.0
1333333.3
1666666.7
2000000.0
2333333.3
2666666.7
3000000.0
3333333.3
RENESAS 363
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