DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 519
![IC H8S/2437 MCU FLASH 128QFP](/photos/12/29/122945/df2437fv_sml.jpg)
DF2437FV
Manufacturer Part Number
DF2437FV
Description
IC H8S/2437 MCU FLASH 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of DF2437FV
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2437FV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 519 of 776
- Download datasheet (5Mb)
16.6
Figure 16.14 shows the general format for clocked synchronous communication. In clocked
synchronous mode, data is transmitted or received in synchronization with clock pulses. One
character in transfer data consists of 8-bit data. In data transmission, the SCI outputs data from one
falling edge of the synchronization clock to the next. In data reception, the SCI receives data in
synchronization with the rising edge of the synchronization clock. After 8-bit data is output, the
transmission line holds the last-bit output state. In clocked synchronous mode, no parity or
multiprocessor bit is added. Inside the SCI, the transmitter and receiver are independent units,
enabling full-duplex communication by use of a common clock. Both the transmitter and the
receiver also have a double-buffered structure, so that the next transmit data can be written during
transmission or the previous receive data can be read during reception, enabling continuous data
transfer.
16.6.1
Either an internal clock generated by the on-chip baud rate generator or an external
synchronization clock input at the SCK pin can be selected, according to the setting of the CKE1
and CKE0 bits in SCR. When the SCI is operated on an internal clock, the synchronization clock
is output from the SCK pin. Eight synchronization clock pulses are output in the transfer of one
character, and when no transfer is performed, the clock is fixed high.
Synchronization
clock
Serial data
Note: * High except in continuous transfer
Figure 16.14 Data Format in Clocked Synchronous Communication (LSB-First)
Operation in Clocked Synchronous Mode
Clock
Don’t care
*
LSB
Bit 0
One unit of transfer data (character or frame)
Bit 1
Bit 2
Bit 3
Bit 4
Rev.2.00 May. 28, 2009 Page 479 of 732
Bit 5
Bit 6
MSB
Bit 7
REJ09B0059-0200
Don’t care
*
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