The DSP has general-purpose and dedicated registers in each of its functional blocks, страница 28

Page	Address	Name
0x0C	0x44-0x45	DSP Memory Buffer Size EP8
0x0C	0x46-0x47	DSP Memory Buffer RD Offset EP8
0x0C	0x48-0x49	DSP Memory Buffer WR Offset EP8
0x0C	0x50-0x53	DSP Memory Buffer Base Addr EP9
0x0C	0x54-0x55	DSP Memory Buffer Size EP9
0x0C	0x56-0x57	DSP Memory Buffer RD Offset EP9
0x0C	0x58-0x59	DSP Memory Buffer WR Offset EP9
0x0C	0x60-0x63	DSP Memory Buffer Base Addr EP10
0x0C	0x64-0x65	DSP Memory Buffer Size EP10
0x0C	0x66-0x67	DSP Memory Buffer RD Offset EP10
0x0C	0x68-0x69	DSP Memory Buffer WR Offset EP10
0x0C	0x70-0x73	DSP Memory Buffer Base Addr EP11
0x0C	0x74-0x75	DSP Memory Buffer Size EP11
0x0C	0x76-0x77	DSP Memory Buffer RD Offset EP11
0x0C	0x78-0x79	DSP Memory Buffer WR Offset EP11
0x0C	0x80-0x81	USB Descriptor Vendor ID
0x0C	0x84-0x85	USB Descriptor Product ID
0x0C	0x86-0x87	USB Descriptor Release Number
0x0C	0x88-0x89	USB Descriptor Device Attributes

DSP Mem ory Buffe r Ba se A ddr Re g iste r

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
X	X	X	X	X	X	X	X	X	X	X	X	X	X	DS	BA

most significant word

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BA	BA	BA	BA	BA	BA	BA	BA	BA	BA	BA	BA	BA	BA	BA	BA

least significant word

Figure B-2. DSP Memory Buffer Base Addr Register

Points to the base address for the DSP memory buffer assigned to this Endpoint.

Table B-34. DSP Memory Buffer Base Addr Register

[DS, BA16:0]	Memory Buffer Base Address
DS	DSP Memory select bit. 0 = DSP1 memory space, 1 = DSP2 memory space
BA[16:0]	Lower 17 address bits

DSP Me m ory Buffe r Size Re g iste r

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ	SZ

Figure B-3. DSP Memory Buffer Size Register

Indicates the size of the DSP memory buffer assigned to this Endpoint.

Table B-35. DSP Memory Buffer Size Register

SZ[15:0]

Memory Buffer Size