hptxsts

         Host Periodic Transmit FIFO/Queue Status Register

Module Instance	Base Address	Register Address
`i_usbotg_0_hostgrp`	`0xFFB00400`	`0xFFB00410`
`i_usbotg_1_hostgrp`	`0xFFB40400`	`0xFFB40410`

Offset: 0x10

Access: RO

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.

Bit Fields
31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
`oddevnmframe` `RO 0x0`	`chanendpt` `RO 0x0`				`type` `RO 0x0`		`term` `RO 0x0`	`ptxqspcavail` `RO 0x10`
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
`ptxfspcavail` `RO 0x2000`

hptxsts Fields

Bit

Name

Description

Access

Reset

oddevnmframe

This indicates the odd/even micro frame that is currently being processes by the MAC.

Value	Description
0x0	EVEN
0x1	ODD

RO

0x0

30:27

chanendpt

This indicates the channel endpoint number that is currently being processes by the MAC.

Value	Description
0xa	ENDPT10
0xb	ENDPT11
0xc	ENDPT12
0xd	ENDPT13
0xe	ENDPT14
0xf	ENDPT15
0x0	ENDPT0
0x1	ENDPT1
0x2	ENDPT2
0x3	ENDPT3
0x4	ENDPT4
0x5	ENDPT5
0x6	ENDPT6
0x7	ENDPT7
0x8	ENDPT8
0x9	ENDPT9

RO

0x0

26:25

type

This indicates the Entry in the Periodic Tx Request Queue that is currently being processes by the MAC.

Value	Description
0x0	INOUT
0x1	ZEROLNGTH
0x2	CSPLIT
0x3	DISABLE

RO

0x0

term

Terminate last entry for selected channel/endpoint.

Value	Description
0x0	INACTIVE
0x1	ACTIVE

RO

0x0

23:16

ptxqspcavail

Periodic Transmit Request Queue Space Available
(PTxQSpcAvail)
Indicates the number of free locations available to be written in
the Periodic Transmit Request Queue. This queue holds both IN
and OUT requests.
 8'h0: Periodic Transmit Request Queue is full
 8'h1: 1 location available
 8'h2: 2 locations available
 n: n locations available (0 <= n <= 16)
 Others: Reserved

Value	Description
0x0	FULL
0x1	FREE1
0x2	FREE2
0x3	FREE3
0x4	FREE4
0x5	FREE5
0x6	FREE6
0x7	FREE7
0x8	FREE8

RO

0x10

15:0

ptxfspcavail

Periodic Transmit Data FIFO Space Available
(PTxFSpcAvail)
Indicates the number of free locations available to be written to in the Periodic
TxFIFO.
Values are in terms of 32-bit words
 16'h0    : Periodic TxFIFO is full
 16'h1    : 1 word available
 16'h2    : 2 words available
 16'hn    : n words available (where 0  n  32,768)
 16’h8000 : 32,768 words
 Others   : Reserved

RO

0x2000