ADSP-219x/2192 DSP Hardware Reference B-79
ADSP-2192 DSP Peripheral Registers
USB Endpoint Description Register
Provides the USB core with information about the Endpoint type, direc-
tion, and maximum packet size. This register is read/write by the MCU
only. This register is defined for Endpoints[4:11].
Figure B-6. USB Endpoint Description Register
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
TB
LT
LT
TY
TY
DR
PS
PS
PS
PS
PS
PS
PS
PS
PS
PS
Table B-39. USB Endpoint Description Register
PS[9:0]
Maximum packet size for Endpoint
LT[1:0]
Last transaction handshake indicator bits sent by the ADSP-2192:
00 = Clear 01 = ACK 10 = NAK 11 = ERR
TY[1:0]
Endpoint type bits:
00 = DISABLED 01 = ISO 10 = Bulk 11 = Interrupt
DR
Endpoint direction bit:
1 = IN 0 = OUT
TB
Toggle bit for Endpoint. Reflects the current state of the DATA toggle bit.