HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 671
HD64F2239TF20I
Manufacturer Part Number
HD64F2239TF20I
Description
MCU 3V 384K I-TEMP 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of HD64F2239TF20I
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K 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
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2239TF20I
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Figure 15.23 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 bit and RE bit to 0, then set both these bits to 1 by one instruction simultaneously.
1. Supprted only by the H8S/2239 Group.
2. The case, in which the DTC automatically clears the TDRE flag or RDRF flag, occurs only when DISEL
No
No
No
in the corresponding DTC transfer is 0 with the transfer counter not being 0. Therefore, the
corresponding flag should be cleared by CPU when DISEL in the corresponding DTC transfer is 1, or
when DISEL is 0 with the transfer counter being 0.
Clear TE and RE bits in SCR to 0
Read receive data in RDR, and
Write transmit data to TDR and
clear RDRF flag in SSR to 0
Start transmission/reception
clear TDRE flag in SSR to 0
Read ORER flag in SSR
Read RDRF flag in SSR
Read TDRE flag in SSR
All data received?
Initialization
ORER = 1
RDRF = 1
TDRE = 1
<End>
Yes
Yes
Yes
No
Error processing
Yes
[1]
[2]
Section 15 Serial Communication Interface (SCI)
[4]
[5]
[3]
Rev. 6.00 Mar. 18, 2010 Page 609 of 982
[1] SCI initialization:
[2] SCI status check and transmit data
[3] Receive error processing:
[4] SCI status check and receive data
[5] Serial transmission/reception
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.
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.
If a receive error occurs, read the
ORER flag in SSR, and after
performing the appropriate error
processing, clear the ORER flag to 0.
Transmission/reception cannot be
resumed if the ORER flag is set to 1.
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.
continuation procedure:
To continue serial transmission/
reception, before the final bitof the
current frame is received, finish
reading the RDRF flag, reading RDR,
and clearing the RDRF flag to 0.
Also, before the final bit 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 DTC
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
a receive data full interrupt (RXI)
request and the RDR value is read.
*
1
or the DTC
REJ09B0054-0600
*
2
is activated by
*
2
is
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