12 task size registers (tsksz[0:1]), Task size registers (tsksz[0:1]) -14 – Freescale Semiconductor MCF5480 User Manual

Page 734

Advertising
background image

MCF548x Reference Manual, Rev. 3

24-14

Freescale Semiconductor

24.3.3.12 Task Size Registers (TSKSZ[0:1])

Each of the 16 tasks can be programmed to use specific source and destination sizes contained in a task

size register instead of a specific type encoded in a DRD. The ADS module uses the task size register

information to determine the source and destination transfer size of the operands. When the size contained

in the DRD is set to 2’b11 then specific source and destination size fields from the task size register are

selected.

6

none

USB device Tx/Rx endpoint 0

7

none

USB device Tx/Rx endpoint 1

8

none

USB device Tx/Rx endpoint 2

9

none

USB device Tx/Rx endpoint 3

10

none

PCI Tx

11

none

PCI Rx

12

none

PSC1 Rx

13

none

PSC1 Tx

14

none

I

2

C Rx

15

none

I

2

C Tx

16

1:0

FEC0 Rx

Reserved

17

3:2

FEC0 Tx

Reserved

18

5:4

Reserved

Reserved

FEC0 Rx

19

7:6

Reserved

Reserved

FEC0 Tx

Reserved

20

9:8

Reserved

FEC1 Rx

Reserved

Reserved

21

11:10

DREQ1

FEC1 Tx

Reserved

Reserved

22

13:12

Reserved

FEC0 Rx

Reserved

Reserved

23

15:14

Reserved

FEC0 Tx

Reserved

Reserved

24

17:16

Reserved

CommTimer0

FEC1 Rx

Reserved

25

19:18

Reserved

CommTimer1

FEC1 Tx

Reserved

26

21:20

USB Endpoint 4

Reserved

CommTimer2

Reserved

27

23:22

USB Endpoint 5

Reserved

CommTimer3

Reserved

28

25:24

USB Endpoint 6

CommTimer4

DREQ1

PSC2 Rx

29

27:26

Reserved

DREQ1

CommTimer5

PSC2Tx

30

29:28

FEC1 Rx

CommTimer6

Reserved

PSC3 Rx

31

31:30

FEC1 Tx

Reserved

CommTimer7

PSC3 Tx

Figure 24-13. Initiator Assignments (Continued)

Request

Number (of

Source)

Initiator Mux

Control

Register Bit

Encoding

00

01

10

11

Advertising
This manual is related to the following products: