CHAPTER 9 TIMER/COUNTER FUNCTION (REAL-TIME PULSE UNIT)
228
User’s Manual U14492EJ3V0UD
9.1.3 Basic configuration
The basic configuration is shown below.
Figure 9-1. Block Diagram of Timer 0 (Mode 0: Symmetric Triangular Wave, Mode 1: Asymmetric
Triangular Wave)
f
XX
/2
BFCMn3
CM0n3
BFCMn0
CM0n0
BFCMn1
CM0n1
BFCMn2
CM0n2
TM0n
S/R
1/1
1/2
1/4
1/8
1/16
1/32
16
16
12
f
CLK
INTCM0n3
INTTM0n
R
S
R
S
R
S
DTMn2
DTMn1
DTMn0
DTRRn
6
TO0n0
(U phase)
TO0n1
(U phase)
TO0n2
(V phase)
TO0n3
(V phase)
TO0n4
(W phase)
TO0n5
(W phase)
Selector
Output control by
external input (ESOn),
TM0n timer operation
Underflow
Underflow
Underflow
ALVUB
ALVVB
ALVWB
R
S
R
S
R
S
R
S
R
S
R
S
ALVTO
f
XX
Remarks 1.
TM0n:
Timer register
CM0n0 to CM0n3:
Compare registers
BFCMn0 to BFCMn3: Buffer registers
DTRRn:
Dead-time timer reload register
DTMn0 to DTMn2:
Dead-time timers
ALVTO:
Bit 7 of TOMRn register
ALVUB:
Bit 6 of TOMRn register
ALVVB:
Bit 5 of TOMRn register
ALVWB:
Bit 4 of TOMRn register
S/R:
Set/Reset
2.
n = 0, 1
3.
f
XX
: Internal system clock
4.
f
CLK
: Base clock (40 MHz (MAX.))
Содержание V850E/IA1 mPD703116
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