HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 548
HD64F2638F20J
Manufacturer Part Number
HD64F2638F20J
Description
IC H8S MCU FLASH 256K 128-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2638F20J
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, SCI, SmartCard
Peripherals
Motor Control PWM, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 13 Serial Communication Interface (SCI)
In serial transmission, the SCI operates as described below.
[1] The SCI monitors the TDRE flag in SSR, and if 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] The SCI checks the TDRE flag at the timing for sending the MSB (bit 7).
[4] After completion of serial transmission, the SCK pin is fixed high.
Page 498 of 1458
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.
When clock output mode has been set, the SCI outputs 8 serial clock pulses. When use of an
external clock has been specified, data is output synchronized with the input clock.
The serial transmit data is sent from the TxD pin starting with the LSB (bit 0) and ending with
the MSB (bit 7).
If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, and serial transmission
of the next frame is started.
If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the MSB (bit 7) is sent, and the
TxD pin maintains its state.
If the TEIE bit in SCR is set to 1 at this time, a TEI interrupt request is generated.
Figure 13-17 shows an example of SCI operation in transmission.
H8S/2639, H8S/2638, H8S/2636,
REJ09B0103-0800 Rev. 8.00
H8S/2630, H8S/2635 Group
May 28, 2010
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