HD6473837H Renesas Electronics America, HD6473837H Datasheet - Page 290

• Manufacturer Part Number: HD6473837H
• Description: IC H8 MCU OTP 60K 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473837H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 84
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: OTP
• Ram Size: 2K 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: Contains lead / RoHS non-compliant
• Eeprom Size: -

Figure 10.11 shows a typical flow chart for SCI3 initialization.
1
2
3
4
Select communication format in SMR
Set bits RIE, TIE, TEIE, and MPIE
in SCR3, and set TE or RE to 1
Clear TE and RE to 0 in SCR3
Set bits CKE1 and CKE0
interval elapsed?
Set BRR value
Figure 10.11 Typical Flow Chart when SCI3 Is Initialized
Has a 1-bit
Start
End
Yes
Wait
No
1.
2.
3.
4.
Select the clock in serial control register 3
(SCR3). Other bits must be cleared to 0.
If clock output is selected in asynchronous
mode, a clock signal will be output as soon
as CKE1 and CKE2 have been set.
During reception in synchronous mode, if
clock output is selected by bits CKE1 and
CKE0, a clock signal will be output as soon
as RE is set to 1.
Set the transmit/receive format in the serial
mode register (SMR).
Set the bit rate register (BRR) to the value
giving the desired bit rate.
This step is not required when an external
clock source is used.
Wait for at least a 1-bit interval, then set
bits RIE, TIE, TEIE, and MPIE, and set bit
TE or RE in SCR3 to 1. Setting TE or RE
enables SCI3 to use the TXD or RXD pin.
The initial states in asynchronous mode
are the mark transmit state and the idle
receive state (waiting for a start bit).
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