MFC2000 datasheet(257/426 Pages) ETC

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Hardware Description

MFC 2000 Multifunctional Peripheral Controller 2000

100723A

Conexant

12-11

Address:

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default:

Step Delay Timer

(SSDelayTimer)

01FF8055

(Not Used)

bit 13 of the

delay timer

bit 12 of the

delay timer

bit 11 of the

delay timer

bit 10 of the

delay timer

bit 9 of the

delay timer

bit 8 of the

delay timer

Rst. Value

00h

Read Value

00h

Address:

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default:

Step Delay Timer

(SSDelayTimer)

01FF8054

bit 7 of the

delay timer

bit 6 of the

delay timer

bit 5 of the

delay timer

bit 4 of the

delay timer

bit 3 of the

delay timer

bit 2 of the

delay timer

bit 1 of the

delay timer

bit 0 of the

delay timer

Rst. Value

00h

Read Value

00h

•

The delay time interval before stepping = (n+1)/STEPCLK, n (bit[13:0] of the step delay timer): from 0 to

16383

Address:

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default:

Current Timer 1

(SSCurTimer1)

01FF804D

(Not Used)

bit 13 of the

current timer

bit 12 of the

current timer

bit 11 of the

current timer

bit 10 of the

current timer

bit 9 of the

current timer

bit 8 of the

current timer

Rst. Value

xx000000b

Read Value

00h

Address:

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default:

Current Timer 1

(SSCurTimer1)

01FF804C

bit 7 of the

current timer

bit 6 of the

current timer

bit 5 of the

current timer

bit 4 of the

current timer

bit 3 of the

current timer

bit 2 of the

current timer

bit 1 of the

current timer

bit 0 of the

current timer

Rst. Value

00h

Read Value

00h

•

This register defines when to change the first driving current to the second driving current within one step time

period. The current timer 1 value in this register must be less than the step timer value set in the SStepTimer

counts down to the current timer 1 value, the current control signals changes to I20 and I21 from I10 and I11

in the SStepCtrl register. I10 and I11 are the initial values of the current control signals within a step.

Address:

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default:

Current Timer 2

(SSCurTimer2)

01FF804F

(Not Used)

bit 13 of the

current timer

bit 12 of the

current timer

bit 11 of the

current timer

bit 10 of the

current timer

bit 9 of the

current timer

bit 8 of the

current timer

Rst. Value

xx000000b

Read Value

00h

Address:

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default:

Current Timer 2

(SSCurTimer2)

01FF804E

bit 7 of the

current timer

bit 6 of the

current timer

bit 5 of the

current timer

bit 4 of the

current timer

bit 3 of the

current timer

bit 2 of the

current timer

bit 1 of the

current timer

bit 0 of the

current timer

Rst. Value

00h

Read Value

00h

•

This register defines when to change the second driving current to the third driving current within one step

time period. The current timer 2 value in this register must be less than the current timer 1 value set in the

SSCurTimer1 register for the same step and greater than 0. Otherwise, the current will not be changed. Once

the step timer counts down to the current timer 2 value, the current control signals changes to I30 and I31

from I20 and I21 in the SStepCtrl register.

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