L9658 datasheet(57/64 Pages) STMICROELECTRONICS

57 / 64 page

L9658

Functional description

Doc ID 14219 Rev 3

57/64

In the auto reply mode where D11 D10 are set to 00,the IC will test every incoming MOSI

command, If the command is a write command to a CCRx register then during the following

CS_S the device reports back the content of the respective CCRx channel register. If the

incoming command is a write to the MCR register for CH1 then in the following CS_S the

device reports back the content of the MCR register.

If the MOSI command is a write to the CCRx register with bits <11:10> are set to 11 the IC

reports the content of the FIFO. MISO bits layout when reporting FIFO data is provided, The

MISO layout when reporting configuration report is provided in previous figure.

When reporting a configuration report for either the MCR or the CCR register MOSI

bits<15:14> are set to 11 to indicate a configuration report. Otherwise they will report the

status of the satellite channel.

In some cases the user may request a configuration report for either the MCR or CCRx

registers without first performing the write operation mentioned above. In this condition if bits

<11:10> are set to 01 by the user, device reports the content of the MCR register on the

subsequent chip select. If bits <11:10> are set to 10 the IC reports the content of the CCR

In case of an SPI command to CH2, CH3 or CH4 with bits D11D10 are set to 00 while D14

is set to 0, or if D11D10 are set to 01 with D14 is set to either 0 or 1, the affected channel

reports $E000.

Bit[12]

This Bit is used to Control the write operation for the CCR Register. When it is set to 0 the

user can modify bits <D9-D0>, D12 and D13 only, all other CCR bits keep previous setting.

When it is set to 1 the user can only modify the following bits D4, D5, D10, D11, D12 and

D13, all other CCR bits keep previous setting

Bit[13]

This Bit is used to Flush FIFO content, when set to 1 the IC flushes the available two FIFO

locations for the specified channel, all FIFO connect is lost in this case.

Table 41.

SPI mode selects reply for satellite channels

D11

D10

CH1

CH2

CH3

CH4

Reply with CCR1

if D14 is 1

Reply with CCR2

if D14 is 1

Reply with CCR3

if D14 is 1

Reply with CCR4

if D14 is 1

Reply with MCR

if D14 is 0

Reply with $E000

if D14 is 0

Reply with $E000

if D14 is 0

Reply with $E000

if D14 is 0

Reply with MCR

Reply with $E000

Reply with CCR1

Reply with CCR2

Reply with CCR3

Reply with CCR4

Report FIFO

Table 42.

Satellite MISO bits definition

87654

3210

FIFO Data

L9658 数据表(PDF) 57 Page - STMicroelectronics

L9658 数据表(HTML) 57 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

数据表下载

链接网址

L9658 数据表(PDF) 57 Page - STMicroelectronics

L9658 数据表(HTML) 57 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

数据表 下载

链接网址

数据表下载