SH7216 datasheet(28/32 Pages) RENESAS

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SH7216 Group

USB Function Module: USB Mass Storage Class

REJ06B0897-0100/Rev.1.00

July 2009

Page 28 of 32

Set the overflowed

amount of data in

bCSWDataResidue

Data is received until the

amount of data planned by

the host has been received

Set the amount of data

not yet sent in

bCSWDataResidue

Dummy read is performed

for the amount of data

planned by the host

Bulk-out operation

in data transport

Does the command to be executed

by the function match the transport

direction in data transport?

YES

Amount of data planned by host

Amount of data planned by function

YES

Data is received in

data transport

Data is received in

data transport

YES

Amount of data planned by host

Amount of data planned by function

Set H'00 in

bCSWStatus

Set H'01 in

bCSWStatus

CASE: (1) (12)

CASE: (9) (11)

Set H'02 in

bCSWStatus

CASE: (13)

Set H'02 in

bCSWStatus

CASE: (10)

Status transport

operation

Figure 10 Error Processing Flow in Data Transport (3)

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