DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 639

• Manufacturer Part Number: DF61654N50FTV
• Description: IC H8SX/1654 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61654N50FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 75
• 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: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

14.4.3
Either an internal clock generated by the on-chip baud rate generator or an external clock input to
the SCK pin can be selected as the SCI's transfer clock, according to the setting of the C/A bit in
SMR and the CKE1 and CKE0 bits in SCR. When an external clock is input to the SCK pin, the
clock frequency should be 16 times the bit rate (when ABCS = 0) and 8 times the bit rate (when
ABCS = 1).
In addition, when an external clock is specified, the average transfer rate or the base clock of
TMR_4 to TMR_7 can be selected by the ACS3 to ACS0 bits in SEMR_5 and SEMR_6.
When the SCI is operated on an internal clock, the clock can be output from the SCK pin. The
frequency of the clock output in this case is equal to the bit rate, and the phase is such that the
rising edge of the clock is in the middle of the transmit data, as shown in figure 14.7.
SCK
TxD
Clock
Figure 14.7 Phase Relation between Output Clock and Transmit Data
0
D0
D1
D2
(Asynchronous Mode)
D3
D4
Section 14 Serial Communication Interface (SCI, IrDA, CRC)
1 frame
D5
D6
D7
Rev.1.00 Sep. 08, 2005 Page 589 of 966
0/1
1
1
REJ09B0219-0100