upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 346

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

346
(n = 0 to 255)
(11) UF0 configuration/interface/endpoint descriptor registers 0 to 255 (UF0CIE0 to UF0CIE255)
UF0CIEn
Cautions 1. To rewrite these registers, set the EP0NKA bit to 1 before reading the register contents,
These registers store the value to be returned in response to the GET_DESCRIPTOR Configuration request.
These registers can be read or written in 8-bit units. However, data can be written to these registers only
when the EP0NKA bit is set to 1.
Descriptor information of up to 256 bytes can be stored in these registers. Store each descriptor in the order
of Configuration, Interface, and Endpoint (see Table 12-6). If there are two or more Interfaces, repeatedly
store the data following the Interface descriptor.
The range of the valid data that can be set to these registers varies according to the setting of the UF0DSCL
register. In addition to the descriptors listed in Table 12-7, descriptors peculiar to classes and vendors can
also be stored.
If all the values are fixed, they can be stored in ROM.
2. Use the value defined by USB Specification Ver. 2.0 and the latest Class Specification as
7
and rewrite the register contents after confirming that the bit has been set, in order to
prevent conflict between a read access and a write access.
the set value.
F9E3H
F9ECH
F9F5H
F9FCH
FA03H
FAxxH
FAxxH + 9
FAxxH + 16
FAxxH + 23
6
Address
:
:
CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
Table 12-6. Mapping of UF0CIEn Register
5
Preliminary User’s Manual U19014EJ1V0UD
Configuration descriptor (9 bytes)
Interface descriptor (9 bytes)
Endpoint1 descriptor (7 bytes)
Endpoint2 descriptor (7 bytes)
Interface descriptor (9 bytes)
Endpoint1 descriptor (7 bytes)
Endpoint2 descriptor (7 bytes)
4
3
Descriptor Stored
2
:
:
:
:
1
0
F9E3H to
FAE2H
Address
After reset
Undefined