upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 384
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upd78f0730
Manufacturer Part Number
upd78f0730
Description
8-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0730.pdf
(518 pages)
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Remark
UF0BO1 register data is read
up to the value read by the
UF0BO1L register.
UF0BO1 register data is read
up to the value read by the
UF0BO1L register.
♦: Processing by hardware
Figure 12-23. Processing If More Data Than Expected by System Is Transmitted (2/2)
CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
Data length other than 0?
Data length other than 0?
Reading UF0BO1 register
Reading UF0BO1 register
BKOUT1 = 0 (UF0EPS0)
such as Endpoint STALL
BKO1FL = 0 (UF0IS3)
BKO1DT= 0 (UF0IS3)
OUT token received?
Updating data length
of UF0BO1L register
Expected processing
INTUSB1B
BKO1NAKC = 0
BKO1NAK = 1?
BKO1NAK = 1
BKO1NKM = 0
NAK response
BKO1NK = 0
(UF0ENM)
(UF0IS3)
(UF0IS3)
(UF0IC3)
Preliminary User’s Manual U19014EJ1V0UD
(UF0EN)
END
I
Yes
Yes
No
No
active
Yes
Yes
No
No
Data length = Data length – 1
Data length = Data length – 1
Illegal processing
Next system sequence?
sequence processing
Expected system
BKO1NKM = 0
BKO1NK = 0
(UF0ENM)
(UF0EN)
END
Yes
No
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