PCA9629PW,118 NXP Semiconductors, PCA9629PW,118 Datasheet - Page 23

• Manufacturer Part Number: PCA9629PW,118
• Description: Motor / Motion / Ignition Controllers & Drivers I2C-bus Stepper motor controller
• Manufacturer: NXP Semiconductors
• Type: Stepper Motor Controllerr

Specifications of PCA9629PW,118

• Rohs: yes
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 4.5 V to 5.5 V
• Supply Current: 6 mA
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-16
• Factory Pack Quantity: 2500

NXP Semiconductors
PCA9629
Product data sheet
7.3.16 EXTRASTEPS0, EXTRASTEPS1 — Extra steps count for INTP0, INTP1
7.3.17 RMPCNTL — Ramp control register
control register
Table 33.
Legend: * default value.
This register has no effect if the interrupt based motor control is disabled or if the
EXTRASTEPS feature for that interrupt is disabled.
When EXTRASTEPS feature is selected using INT_ES_SETUP register bits [1:0], the
8-bit value in this register is used to determine the number of steps or rotations to be
overdriven. Direction of rotation of motor is maintained. If the count value in this register
= 0, no EXTRASTEPS occurs. Whether the count indicates the number of extra steps or
number of full rotations depends on the value of INT_ACT_SETUP control register bit 4.
If INT_ACT_SETUP[4] = 0 (default value), then EXTRASTEPSn value indicates number
of extra steps that will occur after the corresponding interrupt.
If INT_ACT_SETUP[4] = 1, then EXTRASTEPSn value indicates number of full rotations
that will occur after the corresponding interrupt.
Table 34.
Legend: * default value.
The multiplication factor has a decimal range from 1 to 8192 as shown in
Address
22h
23h
Address
24h
EXTRASTEPS0, EXTRASTEPS1 - Extra steps count for INTP0, INTP1 register
(address 22h, 23h) bit description
RMPCNTL - Ramp control register (address 24h) bit description
Register
EXTRASTEPS0
EXTRASTEPS1
Register
RMPCNTL
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 29 February 2012
Bit
7:6
5
4
3:0
Bit
7:0
7:0
Access
R only
R/W
R/W
R/W
Access
R/W
R/W
Value
00*
1
0*
1
0*
0000*
Value
00h*
00h*
Fm+ I
Description
reserved
enable ramp-up during start
disable ramp-up during start
enable ramp-down to stop
disable ramp-down to stop
ramp step multiplication factor
Description
count value for EXTRASTEPS (steps
or rotations) for INTP0
count value for EXTRASTEPS (steps
or rotations) for INTP1
2
C-bus stepper motor controller
PCA9629
© NXP B.V. 2012. All rights reserved.
Table
35.
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