upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 378

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

378
Remark
Yes
♦: Processing by hardware
Reading UF0IS2 register
Writing UF0BI1 register
BKI1NK = 1 (UF0EN)
BKI1DT = 1 (UF0IS2)
IN token received?
Parallel processing
INTUSB1B
Returning NAK
BKI1DED = 1
BKI1INM = 1
(UF0DEND)
BKI1IN = 1?
by hardware
Data error?
BKI1IN = 1
FIFO full?
(UF0IS2)
(UF0IM2)
(UF0IS2)
START
END
Yes
Yes
No
No
active
CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
:
See Figure 12-21 Parallel Processing
by Hardware.
Figure 12-20. Processing for Bulk Transfer (IN)
If return data greater than the FIFO size exists,
it is divided into FIFO size units and sequentially
written, starting from the lowest data byte.
The timing of the bit value varies
depending on the situation on the SIE side.
Yes
No
No
Preliminary User’s Manual U19014EJ1V0UD
Illegal processing
BKI1CC = 1
(UF0FIC0)
Reading UF0IS2 register
BKI1DTC = 0 (UF0IC2)
BKI1INM = 0 (UF0IM2)
BKI1INC = 0 (UF0IC2)
INTUSB1B
No transmit data?
BKI1DT = 1?
(UF0IS2)
END
Yes
Yes
active
No
No
Illegal processing