M66596FP datasheet(64/131 Pages) RENESAS

64 / 131 page

M66596FP/WG

rev .1.00

2006.3.14

page 64 of 127

Table 3.9 Conditions under which a BRDY interrupt is generated

Access

direction

Transfer

direction

Pipe

BFRE

DBLB

Conditions under which a BRDY interrupt is generated

DCP

(1) or (2) bellow;

(1) Short packet reception including , Zero-Length packet reception

(2) Buffer is full by reception

(1) (2) or (3) bellow;

(1) Short packet reception including , Zero-Length packet reception

(2) Buffer is full by reception *1)

(3) Transaction Counter End when buffer is not full

(1), (2), (3) or (4) bellow

(1) One of (a) to (c) conditions is occur when both buffers are waiting

for receiption

(a) a short packet reception including a Zero-Length packet reception

(b) One buffer of two is full by reception

*1)

(2) Reading is complete of a buffer, when both buffer are waiting for

reading

(3) Software set “BCLR=1” to clear a buffer, when both buffer are

waiting for reading

(4) Software set “TGL=1”, when SIE side buffer has a data In the

continuous transfer mode.

Reading

Receive

1-7

Don’t

Care

(1), (2) or (3) bellow

(1) Zero-Length packet reception

(2) After a short packet reception, reading data of the packet is

complete.

(3) After Transaction Counter End reading data of the last packet is

complete,.

DCP

Doesn’t take place

1-7

(1), (2), (3) or (4) bellow;

(1) Software set direction of transfer to transmitting

(2) Packet transmission is completed

(3) Software set “ACLRM=1”, when there are data waiting to

transmitted

(4) Software set “SCLR=1”, when there are data waiting to transmitte

(1), (2), (3), (4) or (5) bellow;

(1) Software set direction of transfer to transmitting

(2) Data is enabled to be transmitted, when there are no buffer

waiting to be transmitted.

(3) Data is enabled to be transmitted,, when there are no buffer

waiting to be transmitted.

(a) A buffer is full by writing

(b) Software set “BVAL=1” to enable the buffer is ready to tarnsmit

(4) Software set “ACLRM=1”, when there are data waiting to

transmitted

(5) Software set “SCLR=1”, when there are data waiting to transmitte

Writing

Transmit

1-7

Don’t

Care

Doesn’t take place

*1) Buffer full shows the following cases.

- In continuous mode ("CBTMD=1" setup), the data of buffer size is received.

- In not continuous mode ("CNTMD=0") , the data of the Max packet size is received.

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