PXD10RM Datasheet, PDF (1132/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

35.2 External signal description
The SMC is associated with 24 pins. Table 35-1 lists the relationship between the PWM channels, signal
pins, PWM channel pairs (motor numbers), coils and nodes they are supposed to drive if all channels are
set to dual full H-bridge configuration.
Table 35-1. PWM Channel and Pin Assignment
Pin Name
PWM Channel
PWM Channel Pair¹
Coil
Node
M0C0M
0
0
0
Minus
M0C0P
M0C1M
1
M0C1P
Plus
1
Minus
Plus
M1C0M
2
M1C0P
M1C1M
3
M1C1P
1
0
Minus
Plus
1
Minus
Plus
M2C0M
4
M2C0P
M2C1M
5
2
0
Minus
Plus
1
Minus
M2C1P
M3C0M
6
M3C0P
M3C1M
7
Plus
3
0
Minus
Plus
1
Minus
M3C1P
M4C0M
8
M4C0P
M4C1M
9
Plus
4
0
Minus
Plus
1
Minus
M4C1P
M5C0M
10
M5C0P
Plus
5
0
Minus
Plus
M5C1M
11
1
Minus
M5C1P
Plus
1 _{A PWM Channel Pair always consists of PWM channel x and PWM channel x+1 (x = 2n). The term}
“PWM Channel Pair” is equivalent to the term “Motor”. For example, Channel Pair 0 is equivalent to
Motor 0.
35.2.1 M0C0M/M0C0P/M0C1M/M0C1P — PWM Output Pins for Motor 0
High current PWM output pins that can be used for motor drive. These pins interface to the coils of
motor 0. PWM output on M0C0M results in a positive current flow through coil 0 when M0C0P is driven
to a logic high state. PWM output on M0C1M results in a positive current flow through coil 1 when
M0C1P is driven to a logic high state (for details refer to Section 35.4.1, Modes of Operation”).
35-4
PXD10 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor