HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 196
HD6473258P10
Manufacturer Part Number
HD6473258P10
Description
IC H8 MCU OTP 32K 64DIP
Manufacturer
Renesas Electronics America
Series
H8® H8/325r
Datasheet
1.HD6413238F10.pdf
(301 pages)
Specifications of HD6473258P10
Core Processor
H8/300
Core Size
8-Bit
Speed
10MHz
Connectivity
SCI, UART/USART
Number Of I /o
53
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
External
Operating Temperature
-20°C ~ 75°C
Package / Case
64-DIP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Peripherals
-
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(2) Clock: Either the internal serial clock created by the on-chip baud rate generator or an external
clock input at the SCK pin can be selected in the synchronous mode. See table 9-6 for details.
(3) Data Transmission and Reception
• SCI Initialization: Before data can be transmitted or received, the SCI must be initialized by
software. To initialize the SCI, software must clear the TE and RE bits to 0 to disable both the
transmit and receive functions, then execute the following procedure.
The TE and RE bits must both be cleared to 0 whenever the operating mode or data format is
changed. After changing the operating mode or data format, before setting the TE and RE bits to 1
software must wait for at least 1 bit transfer time at the selected communication speed, to make sure
the SCI is initialized.
Serial clock
Write the value corresponding to the desired bit rate in the BRR. (This step is not necessary if
an external clock is used.)
Select the clock and enable desired interrupts in the SCR. Leave bit 0 (CKE0) cleared to 0.
Select synchronous mode in the SMR.
Set the TE and/or RE bit in the SCR to 1.
Data
Don’t-care
Bit 0
Figure 9-4. Data Format in Synchronous Mode
Bit 1
Bit 2
Bit 3
189
Transmission direction
Bit 4
Fig 9-4
Bit 5
Bit 6
Don’t-care
Bit 7
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