Cypress S6J3200 Series, Manual

Page: 397 / 1355

CHAPTER 16:Stepper Motor Controller
396 S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
4.4.
PWM Selection Set Register (PWSS)
The PWM Selection Set Register is used to set the value of the PWS.BS bit.
REGISTER_NAME SMCi_PWSS
OFFSET 0x00000008
ACCESS_SIZE B,H
MULTIPLE 1
NUMERIC_TYPE
-
OTHER
-
BIT_OFFSET 15 14 13 12 11 10 9 8
BIT_NAME Reserved BSS Reserved
ACCESS_TYPE R0,W0 R0,W R0,W0
PROT_TYPE Rp/Wp
INITIAL_VALUE 0 0 0
BIT_OFFSET 7 6 5 4 3 2 1 0
BIT_NAME Reserved
ACCESS_TYPE R0,W0
PROT_TYPE Rp/Wp
INITIAL_VALUE 0
[bit15] Reserved: Reserved bit
When writing, always write "0".
When reading, "0" is always read.
[bit14] BSS: Set bit for the Output Update bit
This bit sets the value of PWS.BS bit.
Bit Description
0 No effect
1 Sets the PWS.BS bit to "1". Reading of this bit returns "0".
Notes:
−
If the PWM Pulse Generators is started(PWC.CE="1"), operate following steps because the PWM
Pulse Generator.Compare Data Value must be initialized.
1.
Set the PWM Compare Register.Compare Data Value(PWC1.D[9:0], PWC2.D[9:0])
2.
Set the PWM Selection Register.Output Selection bits(PWS.BS="1", PWS.P2[2:0],
PWS.M2[2:0], PWS.P1[2:0], PWS.M1[2:0])
3.
Set the PWM Control Register.Count Enable bit(PWC.CE="1")
−
If the PWS.BS bit is "1" , don't change the PWM Compare Register.Compare Data
Value(PWC1.D[9:0], PWC2.D[9:0]) and the PWM Selection Register.Output Selection bits
(PWS.P2[2:0], PWS.M2[2:0], PWS.P1[2:0], PWS.M1[2:0]).