HD64F3687GFP Renesas Electronics America, HD64F3687GFP Datasheet - Page 319
HD64F3687GFP
Manufacturer Part Number
HD64F3687GFP
Description
IC H8 MCU FLASH 56K 64-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3684GFPV.pdf
(538 pages)
Specifications of HD64F3687GFP
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
45
Program Memory Size
56KB (56K x 8)
Program Memory Type
FLASH
Ram Size
4K 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-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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16.5.3
Figure 16.10 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 SCI3 recognizes that data
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 SCI3 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 at the end of transmission.
Figure 16.11 shows a sample flow chart 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.
has 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
Section 16 Serial Communication Interface 3 (SCI3)
Rev.5.00 Nov. 02, 2005 Page 285 of 500
REJ09B0027-0500
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