DF2328BVF25V Renesas Electronics America, DF2328BVF25V Datasheet - Page 687
DF2328BVF25V
Manufacturer Part Number
DF2328BVF25V
Description
IC H8S MCU FLASH 256K 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheets
1.HEWH8E10A.pdf
(19 pages)
2.D12312SVTE25V.pdf
(341 pages)
3.D12322RVF25V.pdf
(1304 pages)
Specifications of DF2328BVF25V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
87
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
HD64F2328BVF25V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2328BVF25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Figure 14.20 Sample Flowchart of Simultaneous Serial Transmit and Receive Operations
Notes: When switching from transmit or receive operation to simultaneous
transmit and receive operations, first clear the TE and RE bits to 0,
then set both these bits to 1 simultaneously.
* The DMAC is not supported in the H8S/2321.
No
No
No
Clear TE and RE bits in SCR to 0
Write transmit data to TDR and
Read receive data in RDR, and
Start of transmission/reception
clear TDRE flag in SSR to 0
clear RDRF flag in SSR to 0
Read ORER flag in SSR
Read TDRE flag in SSR
Read RDRF flag in SSR
All data received?
Initialization
ORER = 1?
TDRE = 1?
RDRF = 1?
<End>
Yes
Yes
Yes
No
Error handling
Yes
[1]
[2]
[4]
[5]
Section 14 Serial Communication Interface (SCI)
[3]
Rev.6.00 Sep. 27, 2007 Page 655 of 1268
[1]
[2]
[3]
[4]
[5]
SCI initialization:
The TxD pin is designated as the
transmit data output pin, and the
RxD pin is designated as the
receive data input pin, enabling
simultaneous transmit and receive
operations.
SCI status check and transmit data
write:
Read SSR and check that the
TDRE flag is set to 1, then write
transmit data to TDR and clear the
TDRE flag to 0.
Transition of the TDRE flag from 0 to
1 can also be identified by a TXI
interrupt.
Receive error handling:
If a receive error occurs, read the
ORER flag in SSR, and after
performing the appropriate error
handling, clear the ORER flag to 0.
Transmission/reception cannot be
resumed if the ORER flag is set to 1.
SCI status check and receive data
read:
Read SSR and check that the
RDRF flag is set to 1, then read the
receive data in RDR and clear the
RDRF flag to 0. Transition of the
RDRF flag from 0 to 1 can also be
identified by an RXI interrupt.
Serial transmission/reception
continuation procedure:
To continue serial transmission/
reception, before the MSB (bit 7) of
the current frame is received, finish
reading the RDRF flag, reading
RDR, and clearing the RDRF flag to
0. Also, before the MSB (bit 7) of
the current frame is transmitted,
read 1 from the TDRE flag to
confirm that writing is possible.
Then write data to TDR and clear
the TDRE flag to 0.
Checking and clearing of the TDRE
flag is automatic when the DMAC*
or DTC is activated by a transmit-
data-empty interrupt (TXI) request
and data is written to TDR. Also, the
RDRF flag is cleared automatically
when the DMAC* or DTC is
activated by a receive-data-full
interrupt (RXI) request and the RDR
value is read.
REJ09B0220-0600
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