L6364 datasheet(45/60 Pages) STMICROELECTRONICS

45 / 60 page

name

address

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

LINK2(2)

0x0F

N/A

Data buffer fill count(3).

Writing '1'

declines

sending

response

Writing '1'

sends IO-

Link

response

after FR0

is written

FR0 to

FR14

0x10 to

0x1E

R/W

DATA [7]

DATA [6]

DATA [5]

DATA [4]

DATA [3]

DATA [2]

DATA [1]

DATA [0]

The data buffer registers are only accessible when frame data is available (DAT bit set).The initial

value of all register bits following reset is '0', except bits DCDC:VSET[2:0], where the default value is

1. Valid CNT data may only be read when data is available (DAT bit set). If this is true, then reading the field returns the

number received octets. Writing the CNT field sets the number of octets to transmit. Note that a read back will continue to

read the number of octets in the received frame, and not the value written over SPI.

2. LINK register repeated prior to frame buffer with deferred send function

3. Valid CNT data may only be read when data is available (DAT bit set). If this is true, then reading the field returns the

number received octets. Writing the CNT field sets the number of octets to transmit. Note that a read back will continue to

read the number of octets in the received frame, and not the value written over SPI.

L6364

DS13363 - Rev 4

page 45/60

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