A–4

A.4 USB Endpoint Configuration Blocks and Data Buffers Space

A.4.1 USB Endpoint Confiuration Blocks

The USB endpoint configuration space contains 16 blocks of 8 bytes which define configuration, buffer location, buffer

size, and data count for 16 (8 input and 8 output) USB endpoints. The MCU, UBM, and DMA, all have access to these

configuration blocks.

The device defines an endpoint of a USB pipe by initializing the configuration block configuration byte. It defines the

location of the pipe X and Y buffers in endpoint data buffer space by writing to the X buffer base address byte and

Y buffer base address byte. Base addresses are octlet (8-byte) aligned. Finally, the device sets the X and Y buffer

size to allocate fixed sized buffers for the pipe. Both X and Y buffer size must be greater than or equal to the USB

packet size associated with the endpoint. If the buffer size is greater than the USB packet size, each buffer will

independently recirculate.

A.4.2 Data Buffers Space

The endpoint data buffer space (1832 bytes) provides rate buffering between the USB and CODECs attached to the

TUSB3200. Buffers are defined in this space by base address pointers and size descriptors in the USB endpoint

configuration blocks. The MCU also has access to this space.

The UBM associates USB endpoints with buffers in the endpoint data buffer space by looking up configuration for

an endpoint in USB endpoint configuration space. A particular DMA channel is associated with a buffer through an

endpoint number in the DMA channel’s control register.

External Data Memory

Memory Mapped Registers

(80 Bytes)

Endpoint Configuration Blocks

(128 Bytes)

Setup Data Packet Buffer

(8 Bytes)

Endpoint Data Buffers

(1832 Bytes)

FFFFh

FFB0h

FFAFh

FF30h

FF2Fh

FF28h

FF27h

F800h

DMA Access

MCU Access

UBM Access

Figure A–3. USB Endpoint Configuration Blocks and Buffer Space Memory Map

A–5

Table A–1. USB Endpoint Configuration Blocks Address Map

ADDRESS MNEMONIC NAME

FFAFh OEPDCNTY0 Out endpoint 0 - Y buffer data count byte

FFAEh Reserved Reserved for future use

FFADh OEPBBAY0 Out endpoint 0 - Y buffer base address byte

FFACh Reserved Reserved for future use

FFABh OEPDCNTX0 Out endpoint 0 - X buffer data count byte

FFAAh OEPBSIZ0 Out endpoint 0 - X and Y buffer size byte

FFA9h OEPBBAX0 Out endpoint 0 - X buffer base address byte

FFA8h OEPCNF0 Out endpoint 0 – configuration byte

FFA7h OEPDCNTY1 Out endpoint 1 - Y buffer data count byte

FFA6h Reserved Reserved for future use

FFA5h OEPBBAY1 Out endpoint 1 - Y buffer base address byte

FFA4h Reserved Reserved for future use

FFA3h OEPDCNTX1 Out endpoint 1 - X buffer data count byte

FFA2h OEPBSIZ1 Out endpoint 1 - X and Y buffer size byte

FFA1h OEPBBAX1 Out endpoint 1 - X buffer base address byte

FFA0h OEPCNF1 Out endpoint 1 – configuration byte

FF9Fh OEPDCNTY2 Out endpoint 2 - Y buffer data count byte

FF9Eh Reserved Reserved for future use

FF9Dh OEPBBAY2 Out enEdpoint 2 - Y buffer base address byte

FF9Ch Reserved Reserved for future use

FF9Bh OEPDCNTX2 Out endpoint 2 - X buffer data count byte

FF9Ah OEPBSIZ2 Out endpoint 2 - X and Y buffer size byte

FF99h OEPBBAX2 Out endpoint 2 - X buffer base address byte

FF98h OEPCNF2 Out endpoint 2 – configuration byte

FF97h OEPDCNTY3 Out endpoint 3 - Y buffer data count byte

FF96h Reserved Reserved for future use

FF95h OEPBBAY3 Out endpoint 3 - Y buffer base address byte

FF94h Reserved Reserved for future use

FF93h OEPDCNTX3 Out endpoint 3 - X buffer data count byte

FF92h OEPBSIZ3 Out endpoint 3 - X and Y buffer size byte

FF91h OEPBBAX3 Out endpoint 3 - X buffer base address byte

FF90h OEPCNF3 Out endpoint 3 – configuration byte

FF8Fh OEPDCNTY4 Out endpoint 4 - Y buffer data count byte

FF8Eh Reserved Reserved for future use

FF8Dh OEPBBAY4 Out endpoint 4 - Y buffer base address byte

FF8Ch Reserved Reserved for future use

FF8Bh OEPDCNTX4 Out endpoint 4 - X buffer data count byte

FF8Ah OEPBSIZ4 Out endpoint 4 - X and Y buffer size byte

FF89h OEPBBAX4 Out endpoint 4 - X buffer base address byte

FF88h OEPCNF4 Out endpoint 4 – configuration byte

FF87h OEPDCNTY5 Out endpoint 5 - Y buffer data count byte

FF86h Reserved Reserved for future use

FF85h OEPBBAY5 Out endpoint 5 - Y buffer base address byte

FF84h Reserved Reserved for future use

FF83h OEPDCNTX5 Out endpoint 5 - X buffer data count byte

FF82h OEPBSIZ5 Out endpoint 5 - X and Y buffer size byte

FF81h OEPBBAX5 Out endpoint 5 - X Buffer Base Address Byte

FF80h OEPCNF5 Out endpoint 5 – configuration byte

A–6

Table A–1. USB Endpoint Configuration Blocks Address Map (Continued)

ADDRESS MNEMONIC NAME

FF7Fh OEPDCNTY6 Out endpoint 6 - Y buffer data count byte

FF7Eh Reserved Reserved for future use.

FF7Dh OEPBBAY6 Out endpoint 6 - Y buffer base address byte

FF7Ch Reserved Reserved for future use.

FF7Bh OEPDCNTX6 Out endpoint 6 - X buffer data count byte

FF7Ah OEPBSIZ6 Out endpoint 6 - X and Y buffer size byte

FF79h OEPBBAX6 Out endpoint 6 - X buffer base address byte

FF78h OEPCNF6 Out endpoint 6 – configuration byte

FF77h OEPDCNTY7 Out endpoint 7 - Y buffer data count byte

FF76h Reserved Reserved for future use.

FF75h OEPBBAY7 Out endpoint 7 - Y buffer base address byte

FF74h Reserved Reserved for future use.

FF73h OEPDCNTX7 Out endpoint 7 - X buffer data count byte

FF72h OEPBSIZ7 Out endpoint 7 - X and Y buffer size byte

FF71h OEPBBAX7 Out endpoint 7 - X buffer base address byte

FF70h OEPCNF7 Out endpoint 7 – configuration byte

FF6Fh IEPDCNTY0 In endpoint 0 - Y buffer data count byte

FF6Eh Reserved Reserved for future use.

FF6Dh IEPBBAY0 In endpoint 0 - Y buffer base address byte

FF6Ch Reserved Reserved for future use.

FF6Bh IEPDCNTX0 In endpoint 0 - X buffer data count byte

FF6Ah IEPBSIZ0 In endpoint 0 - X and Y buffer size byte

FF69h IEPBBAX0 In endpoint 0 - X buffer base address byte

FF68h IEPCNF0 In endpoint 0 – configuration byte

FF67h IEPDCNTY1 In endpoint 1 - Y buffer data count byte

FF66h Reserved Reserved for future use.

FF65h IEPBBAY1 In endpoint 1 - Y buffer base address byte

FF64h Reserved Reserved for future use.

FF63h IEPDCNTX1 In endpoint 1 - X buffer data count byte

FF62h IEPBSIZ1 In endpoint 1 - X and Y buffer size byte

FF61h IEPBBAX1 In endpoint 1 - X buffer base address byte

FF60h IEPCNF1 In endpoint 1 – configuration byte

FF5Fh IEPDCNTY2 In endpoint 2 - Y buffer data count byte

FF5Eh Reserved Reserved for future use.

FF5Dh IEPBBAY2 In endpoint 2 - Y buffer base address byte

FF5Ch Reserved Reserved for future use.

FF5Bh IEPDCNTX2 In endpoint 2 - X buffer data count byte

FF5Ah IEPBSIZ2 In eEndpoint 2 - X and Y buffer size byte

FF59h IEPBBAX2 In endpoint 2 - X buffer base address byte

FF58h IEPCNF2 In endpoint 2 – configuration byte

FF57h IEPDCNTY3 In endpoint 3 - Y buffer data count byte

FF56h Reserved Reserved for future use.

FF55h IEPBBAY3 In endpoint 3 - Y buffer base address byte

FF54h Reserved Reserved for future use.

FF53h IEPDCNTX3 In endpoint 3 - X buffer data count byte

FF52h IEPBSIZ3 In endpoint 3 - X and Y buffer size byte

FF51h IEPBBAX3 In endpoint 3 - X buffer base address byte

FF50h IEPCNF3 In endpoint 3 – configuration byte

Part #	TUSB3200ACPAH
Description	USB STREAMING CONTROLLER
Category	IC
Availability	Out of Stock
Qty	0

TUSB3200ACPAH

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