HD64F2166VTE33 Renesas Electronics America, HD64F2166VTE33 Datasheet - Page 443
HD64F2166VTE33
Manufacturer Part Number
HD64F2166VTE33
Description
IC H8S MCU FLASH 512K 144-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of HD64F2166VTE33
Core Processor
H8S/2000
Core Size
16-Bit
Speed
33MHz
Connectivity
I²C, IrDA, LPC, SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
106
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
40K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-TQFP, 144-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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14.6.3
Figure 14.19 shows an example of SCI operation for transmission in clock synchronous mode. In
serial transmission, the SCI operates as described below.
1. The SCI monitors the TDRE flag in SSR, and if it is 0, recognizes that data has been written to
2. After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts
3. 8-bit data is sent from the TxD pin synchronized with the output clock when output clock
4. The SCI checks the TDRE flag at the timing for sending the last bit.
5. If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, and serial transmission
6. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, and the TxD pin maintains the
Figure 14.20 shows a sample flowchart for serial data transmission. Even if the TDRE flag is
cleared to 0, transmission will not start while a receive error flag (ORER, FER, or PER) is set to 1.
Make sure to clear the receive error flags to 0 before starting transmission. Note that clearing the
RE bit to 0 does not clear the receive error flags.
Synchronization
clock
Serial data
TDRE
TEND
TDR, and transfers the data from TDR to TSR.
transmission. If the TIE bit in SCR is set to 1 at this time, a TXI interrupt request is generated.
Because the TXI interrupt routine writes the next transmit data to TDR before transmission of
the current transmit data has finished, continuous transmission can be enabled.
mode has been specified and synchronized with the input clock when use of an external clock
has been specified.
of the next frame is started.
output state of the last bit. If the TEIE bit in SCR is set to 1 at this time, a TEI interrupt request
is generated. The SCK pin is fixed high.
Figure 14.19 Sample SCI Transmission Operation in Clock Synchronous Mode
TXI interrupt
request generated
Serial Data Transmission (Clock Synchronous Mode)
Data written to TDR
and TDRE flag cleared
to 0 in TXI interrupt
service routine
Bit 0
Transfer direction
Bit 1
1 frame
Bit 7
TXI interrupt
request generated
Bit 0
Bit 1
Rev. 3.00, 03/04, page 401 of 830
TEI interrupt request
generated
Bit 6
Bit 7
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