HD64F3694H Renesas Electronics America, HD64F3694H Datasheet - Page 244
HD64F3694H
Manufacturer Part Number
HD64F3694H
Description
IC H8 MCU FLASH 32K 64QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3694GFYV.pdf
(452 pages)
Specifications of HD64F3694H
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
PWM, WDT
Number Of I /o
29
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 14 Serial Communication Interface 3 (SCI3)
14.5.3
Figure 14.10 shows an example of SCI3 operation for transmission in clocked synchronous mode.
In serial transmission, the SCI3 operates as described below.
1. The SCI3 monitors the TDRE flag in SSR, and if the flag is 0, the SCI recognizes that data has
2. The SCI3 sets the TDRE flag to 1 and starts transmission. If the TIE bit in SCR3 is set to 1 at
3. 8-bit data is sent from the TxD pin synchronized with the output clock when output clock
4. The SCI checks the TDRE flag at the timing for sending the MSB (bit 7).
5. If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, and serial transmission
6. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, and the TDRE flag maintains the
7. The SCK3 pin is fixed high.
Figure 14.11 shows a sample flowchart for serial data transmission. Even if the TDRE flag is
cleared to 0, transmission will not start while a receive error flag (OER, FER, or PER) is set to 1.
Make sure that the receive error flags are cleared to 0 before starting transmission.
Rev.5.00 Nov. 02, 2005 Page 214 of 418
REJ09B0028-0500
been written to TDR, and transfers the data from TDR to TSR.
this time, a transmit data empty interrupt (TXI) is generated.
mode has been specified, and synchronized with the input clock when use of an external clock
has been specified. Serial data is transmitted sequentially from the LSB (bit 0), from the TXD
pin.
of the next frame is started.
output state of the last bit. If the TEIE bit in SCR3 is set to 1 at this time, a TEI interrupt
request is generated.
Serial Data Transmission
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