E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 677

• Manufacturer Part Number: E62655RUSB
• Description: EMULATOR BASE H8S/2655R W/USB
• Manufacturer: Renesas Electronics America
• Type: Microcontrollerr

Specifications of E62655RUSB

• Contents: E6000 Emulator Unit and 4 Logic Probes
• For Use With/related Products: H8S/2655R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Restrictions on Use of DMAC or DTC
When an external clock source is used as the serial clock, the transmit clock should not be
input until at least 5 clock cycles after TDR is updated by the DMAC or DTC. Misoperation
may occur if the transmit clock is input within 4 clocks after TDR is updated. (Figure 14.22)
When RDR is read by the DMAC or DTC, be sure to set the activation source to the relevant
SCI reception end interrupt (RXI).
SCK
TDRE
Serial data
Note: When operating on an external clock, set t >4 clocks.
Figure 14.22 Example of Clocked Synchronous Transmission by DTC
t
LSB
D0
D1
D2
Section 14 Serial Communication Interface (SCI)
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Rev. 5.00 Sep 14, 2006 page 647 of 1060
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REJ09B0331-0500
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