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AN07-00180-3E
Table 4-1 Microcontroller pin/Motor driver circuit connections
Microcontroller
pin number
Pin57
Pin56
Pin55
Pin54
Pin53
Pin52
Pin name
RTO0
RTO1
RTO2
RTO3
RTO4
RTO5
Name of the semiconductor
element connected
U-High
U-Low
V-High
V-Low
W-High
W-Low
RTO0 to 5 ON/OFF control is practically taken by the macro in the microprocessor mounted on the board.
So, it is necessary to configure registers for functions empl oyed by the macro. “ Table 4-2 Functions
employed by the motor driving macro ” shows the functions employed.
Table 4-2 Functions employed by the motor driving macro
Function name
16-bit free-run timer
16-bit output compare
Description
Timer in which an up/down counter is used.
This counter is used to configure the output compare function.
Used to make comparisons with the value of the free-run timer,
and the resulting values are used to turn on/off RTO0 to 5.
The registers used for the 16-bit free- run timer are as shown in “ Figure 4-5 Timer control registers ”. A
description of the registers and their setting values in the sample program are as described in “ Table 4-3
Description of the timer control registers and setting values ”. For more information of the registers, refer
to the microcontroller hardware manual.
Timer control high-order bits
bit15
bit14
bit13
bit12
bit11
bit10
bit9
bit8
TCCSH0
ECKE
IRQZF
IRQZE
MSI2
MSI1
MSI0
ICLR
ICRE
Timer control low-order bits
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
TCCSL0
BFE
STOP
MODE
SCLR
CLK3
CLK2
CLK1
CLK0
Figure 4-5 Timer control registers
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