HD64F3694FY Renesas Electronics America, HD64F3694FY Datasheet - Page 222
HD64F3694FY
Manufacturer Part Number
HD64F3694FY
Description
IC H8 MCU FLASH 32K 48-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3694GFYV.pdf
(452 pages)
Specifications of HD64F3694FY
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
48-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HD64F3694FYJV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
Company:
Part Number:
HD64F3694FYV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 14 Serial Communication Interface 3 (SCI3)
14.3.1
RSR is a shift register that is used to receive serial data input from the RxD pin and convert it into
parallel data. When one byte of data has been received, it is transferred to RDR automatically.
RSR cannot be directly accessed by the CPU.
14.3.2
RDR is an 8-bit register that stores received data. When the SCI3 has received one byte of serial
data, it transfers the received serial data from RSR to RDR, where it is stored. After this, RSR is
receive-enabled. As RSR and RDR function as a double buffer in this way, continuous receive
operations are possible. After confirming that the RDRF bit in SSR is set to 1, read RDR only
once. RDR cannot be written to by the CPU. RDR is initialized to H'00.
14.3.3
TSR is a shift register that transmits serial data. To perform serial data transmission, the SCI3 first
transfers transmit data from TDR to TSR automatically, then sends the data that starts from the
LSB to the TXD pin
14.3.4
TDR is an 8-bit register that stores data for transmission. When the SCI3 detects that TSR is
empty, it transfers the transmit data written in TDR to TSR and starts transmission. The double-
buffered structure of TDR and TSR enables continuous serial transmission. If the next transmit
data has already been written to TDR during transmission of one-frame data, the SCI3 transfers
the written data to TSR to continue transmission. To achieve reliable serial transmission, write
transmit data to TDR only once after confirming that the TDRE bit in SSR is set to 1. TDR is
initialized to H'FF.
Rev.5.00 Nov. 02, 2005 Page 192 of 418
REJ09B0028-0500
Receive Shift Register (RSR)
Receive Data Register (RDR)
Transmit Shift Register (TSR)
Transmit Data Register (TDR)
.
TSR cannot be directly accessed by the CPU.
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