HD64F3687GFP Renesas Electronics America, HD64F3687GFP Datasheet - Page 334
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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Section 16 Serial Communication Interface 3 (SCI3)
16.8
16.8.1
When framing error detection is performed, a break can be detected by reading the RxD pin value
directly. In a break, the input from the RxD pin becomes all 0s, setting the FER flag, and possibly
the PER flag. Note that as the SCI3 continues the receive operation after receiving a break, even if
the FER flag is cleared to 0, it will be set to 1 again.
16.8.2
When TE is 0, the TxD pin is used as an I/O port whose direction (input or output) and level are
determined by PCR and PDR. This can be used to set the TxD pin to mark state (high level) or
send a break during serial data transmission. To maintain the communication line at mark state
until TE is set to 1, set both PCR and PDR to 1. As TE is cleared to 0 at this point, the TxD pin
becomes an I/O port, and 1 is output from the TxD pin. To send a break during serial transmission,
first set PCR to 1 and clear PDR to 0, and then clear TE to 0. When TE is cleared to 0, the
transmitter is initialized regardless of the current transmission state, the TxD pin becomes an I/O
port, and 0 is output from the TxD pin.
16.8.3
Transmission cannot be started when a receive error flag (OER, PER, or FER) is set to 1, even if
the TDRE flag is cleared to 0. Be sure to clear the receive error flags to 0 before starting
transmission. Note also that receive error flags cannot be cleared to 0 even if the RE bit is cleared
to 0.
Rev.5.00 Nov. 02, 2005 Page 300 of 500
REJ09B0027-0500
Usage Notes
Break Detection and Processing
Mark State and Break Sending
Receive Error Flags and Transmit Operations (Clocked Synchronous Mode Only)
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