HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 287
HD6435348R
Manufacturer Part Number
HD6435348R
Description
Single-Chip Microcomputer
Manufacturer
Hitachi Semiconductor
Datasheet
1.HD6435348R.pdf
(487 pages)
- Current page: 287 of 487
- Download datasheet (2Mb)
3. Data Transmission and Reception
• SCI Initialization: Before data can be transmitted or received, the SCI must be initialized
(1) Set the desired communication format in the SMR.
(2) Write the value corresponding to the desired bit rate in the BRR. (This step is not
(3) Select the clock and enable desired interrupts in the SCR.
(4) Set the TE and/or RE bit in the SCR to 1.
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 the transfer time for 1 bit at the selected baud rate, to make sure
the SCI is initialized. If an external clock is used, the clock must not be stopped.
When clearing the TDRE bit during data transmission, to assure transfer of the correct data, do
not clear the TDRE bit until after writing data in the TDR. Similarly, in receiving data, do not
clear the RDRF bit until after reading data from the RDR.
• Data Transmission: The procedure for transmitting data is as follows.
(1) Set up the desired transmitting conditions in the SMR, SCR, and BRR.
(2) Set the TE bit in the SCR to 1.
(3) Check that the TDRE bit is set to 1, then write the first byte of transmit data in the TDR.
* A frame is the data for one character, including the start bit and stop bit(s).
by software. To initialize the SCI, software must clear the TE and RE bits to 0, then execute
the following procedure.
necessary if an external clock is used.)
The TXD pin will automatically be switched to output and one frame* of all 1’s will be
transmitted, after which the SCI is ready to transmit data.
Next clear the TDRE bit to 0.
273
Related parts for HD6435348R
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
(HD64 Series) Hitachi Single-Chip Microcomputer
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
HM628128LFP-10Hitachi Semiconductor [131072-word x 8-bit High Speed CMOS Static RAM]
Manufacturer:
HITACHI
Datasheet:
Part Number:
Description:
Silicon N-Channel Junction FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel Junction FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
GaAs HEMT
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET High Speed Power Switching
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET High Speed Power Switching
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET Low Frequency Power Switching
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET High Speed Switching
Manufacturer:
Hitachi Semiconductor
Datasheet: