HD64F2239FA16 Renesas Electronics America, HD64F2239FA16 Datasheet - Page 665
HD64F2239FA16
Manufacturer Part Number
HD64F2239FA16
Description
IC H8S MCU FLASH 384K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Specifications of HD64F2239FA16
Core Processor
H8S/2000
Core Size
16-Bit
Speed
16MHz
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
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Company:
Part Number:
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Manufacturer:
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Quantity:
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15.6.3
Figure 15.19 shows an example of SCI operation for transmission in clocked synchronous mode.
In serial transmission, the SCI operates as described below.
1. The SCI monitors the TDRE flag in SSR, and if the flag is 0, the SCI recognizes that data has
2. After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts
been written to TDR, and transfers the data from TDR to TSR.
transmission. If the TIE bit in SCR is set to 1 at this time, a transmit data empty interrupt
(TXI) is generated. Continuous transmission is possible because the TXI interrupt routine
writes the next transmit data to TDR before transmission of the current transmit data has been
completed.
Note: In simultaneous transmit and receive operations, the TE and RE bits should both be cleared
Serial Data Transmission (Clocked Synchronous Mode)
Set TE and RE bits in SCR to 1, and
set RIE, TIE, TEIE, and MPIE bits
Clear TE and RE bits in SCR to 0
Set CKE1 and CKE0 bits in SCR
to 0 or set to 1 simultaneously.
Set data transfer format in
1-bit interval elapsed?
Start initialization
Set value in BRR
SMR and SCMR
<Transfer start>
(TE, RE bits 0)
Figure 15.18 Sample SCI Initialization Flowchart
Yes
Wait
No
[4]
[2]
[3]
[1]
Section 15 Serial Communication Interface (SCI)
[1] Set the clock selection in SCR. Be sure
[2] Set the data transfer format in SMR and
[3] Write a value corresponding to the bit
[4] Wait at least one bit interval, then set
Rev. 6.00 Mar. 18, 2010 Page 603 of 982
to clear bits RIE, TIE, TEIE, and MPIE,
TE and RE, to 0.
SCMR.
rate to BRR. Not necessary if an
external clock is used.
the TE bit or RE bit in SCR to 1.
Also set the RIE, TIE TEIE, and MPIE
bits.
Setting the TE and RE bits enables the
TxD and RxD pins to be used.
REJ09B0054-0600
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