upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 343

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

(8) UF0 interface 1 to 4 registers (UF0IF1 to UF0IF4)
Remark
UF0IF1
UF0IF2
UF0IF3
UF0IF4
Bit position
Caution Do not perform write access to this register. Operation is not guaranteed if this register is
2 to 0
These registers store the value that is to be returned in response to the GET_INTERFACE wIndex = n request
(n = 1 to 4).
These registers are read-only, in 8-bit units.
When the SET_INTERFACE request is received, its wValue is automatically written to these registers.
These registers are invalidated according to the setting of the UF0AIFN and UF0AAS registers.
If the SET_INTERFACE request is processed by FW, wIndex and wValue are decoded, and the setting of
endpoint is automatically changed.
automatically cleared to 0, depending on the setting. The FIFO is not cleared automatically.
n = 1 to 4
7
0
0
0
0
written.
IFn2 to IFn0
Bit name
6
0
0
0
0
CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
These bits hold the data to be returned in response to GET_INTERFACE wIndex = n
request.
5
0
0
0
0
Preliminary User’s Manual U19014EJ1V0UD
4
0
0
0
0
At this time, the status bit of the target endpoint and DPID are
3
0
0
0
0
IF12
IF22
IF32
IF42
2
Function
IF11
IF21
IF31
IF41
1
IF10
IF20
IF30
IF40
0
Address
FF93H
FF94H
FF95H
FF96H
After reset
00H
00H
00H
00H
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