DF36034HJV Renesas Electronics America, DF36034HJV Datasheet - Page 406
DF36034HJV
Manufacturer Part Number
DF36034HJV
Description
MCU 3/5V 32K J-TEMP PB-FREE 64-Q
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Specifications of DF36034HJV
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, SCI, SSU
Peripherals
PWM, WDT
Number Of I /o
45
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFP
For Use With
R0K436079S000BE - KIT DEV FOR H8/36079 W/COMPILER
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Section 16 Synchronous Serial Communication Unit (SSU)
16.4.8
Serial Data Transmission
Figure 16.11 shows an example of the SSU operation for transmission. In serial transmission, the
SSU operates as described below.
When the SSU is set as a master device, it outputs a synchronous clock and data. When the SSU is
set as a slave device, the SCS pin is in the low-input state and the SSU outputs data in
synchronized with the input clock.
When the SSU writes transmit data in SSTDR after setting the TE bit to 1, the TDRE flag is
automatically cleared to 0 and data is transferred from SSTDR to SSTRSR. Then the SSU sets the
TDRE flag to 1 and starts transmission. If the TIE bit in SSER is set to 1 at this time, a TXI is
generated.
When the TDRE flag is 0 and one frame of data has transferred, data is transferred from SSTDR to
SSTRSR and serial transmission of the next frame is started. If the eighth bit is transmitted while
the TDRE flag is 1, the TEND bit in SSSR is set to 1 and the state is retained. If the TEIE bit in
SSER is set to 1 at this time, a TEI is generated. After transmission is ended, the SSCK pin is
fixed high and the SCS pin goes high. When continuous transmission is performed with the SCS
pin low, the next data should be written to SSTDR before transmitting the eighth bit of the frame.
While the ORER bit in SSSR is set to 1, transmission cannot be performed. Therefore confirm that
the ORER bit is cleared to 0 before transmission.
The difference between this mode and clocked synchronous communication mode is as follows:
when the SSU is set as a master device, the SSO pin is in the Hi-Z state if the SCS pin is in the Hi-
Z state and when the SSU is set as a slave device, the SSI pin is in the Hi-Z state if the SCS pin is
in the high-input state. The sample flowchart for serial data transmission is the same as that in
clocked synchronous communication mode.
Rev. 4.00 Mar. 15, 2006 Page 372 of 556
REJ09B0026-0400
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