M66596FP datasheet(72/131 Pages) RENESAS

72 / 131 page

M66596FP/WG

rev .1.00

2006.3.14

page 72 of 127

3.3 Pipe control

Table 3.11 shows the pipe setting items of the controller. With USB data transfers, data communication has to be

carried out using the logic pipe called the end point. This controller has eight pipes that are used for data transfers.

Settings should be entered for each of the pipes in conjunction with the specifications of the user system.

Table 3.11 Pipe setting items

name

Bit name

Setting contents

Note

TYPE

Specifies the transfer

type

Please refer to Chapter

3.3.1 Transfer types

BFRE

Selects the BRDY

interrupt mode

PIPE1-5: Can be set

Please refer to Chapters 3.4.3.5

and 3.4.3.6

DBLB

Selects a single or double

buffer

PIPE1-5: Can be set

Please refer to Chapter 3.4.1.5

CNTMD

Selects continuous

transfer or

non-continuous transfer

DCP: Can be set

PIPE1-2: Can be set (can be set only when bulk transfer has

been selected)

PIPE3-5: Can be set

With continuous transmission and reception, the buffer size

should be set to an integer multiple of the payload.

Please refer to Chapter 3.4.1.6

DIR

Selects transfer direction

(reading or writing)

IN or OUT can be set.

Please refer to Chapter 3.4.2.1

(DCP is controlled by ISEL).

EPNUM

End point number

Please refer to Chapter

3.3.2 End point number.

DCPCFG

PIPECFG

SHTNAK

Selects disabled state for

pipe when transfer ends

PIPE1-2: Can be set (can be set only when bulk transfer has

been selected)

PIPE3-5: Can be set

Please refer to Chapter

3.3.7 Auto NAK function.

BUFSIZE

Buffer memory size

DCP: Cannot be set (fixed at 256 bytes)

PIPE1-5: Can be set (can be specified up to a maximum of 2

KB in 64-byte units)

PIPR6-7: Cannot be set (fixed at 64 bytes)

Please refer to Chapter 3.4.1

PIPEBUF

BUFNMB

Buffer memory number

DCP: Cannot be set (areas fixed at 0-3)

PIPE1-5: Can be set (can be specified in areas 6-4F)

PIPE6-7: Cannot be set (areas fixed at 4-5)

Please refer to Chapter 3.4.1.

DCPMAXP

PIPEMAXP

MXPS

Maximum packet size

Please refer to Chapter

3.3.3 Maximum packet size setting

IFIS

Buffer Flush

PIPE1-2: Can be set (only when isochronous transfer has been

selected)

PIPE3-7: Cannot be set

Please refer to Chapter 3.9.5.

PIPEPERI

IITV

Interval Counter

PIPE1-2: Can be set (only when isochronous transfer has been

selected)

PIPE3-7: Cannot be set

Please refer to Chapter 3.9.3.

BSTS

Buffer Status

Please refer to Chapter 3.4.1.1

(also related to DIR / ISEL)

INBUFM

IN Buffer Monitor

Please refer to Chapter 3.4.1.1

(also related to DIR / ISEL)

ACLRM

Auto Buffer Clear

Enabled / disabled setting can be set when buffer memory

reading is set.

Please refer to Chapter 3.4.1.4

SQCLR

Sequence Clear

Clears the data toggle bit.

Please refer to Chapter

3.3.6 Data PID sequence bit.

SQSET

Sequence Set

Sets the data toggle bit.

Please refer to Chapter

3.3.6 Data PID sequence bit.

SQMON

Sequence Confirm

Confirms the data toggle bit.

Please refer to Chapter

3.3.6 Data PID sequence bit.

DCPCTR

PIPExCTR

PID

Response PID

Please refer to Chapter

3.3.4 Response PID.

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