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CHAPTER 8 16-BIT RELOAD TIMER
8.1
Overview
The 16-bit reload timer consists of a 16-bit down counter, a 16-bit reload register, an
internal counter, a prescaler for clock generation, and a control register.
The clock source can be selected from three internal clocks (machine clock divided by
2, 8, 32, 64 and 128) and external triggers.
The MB91260B series have three built-in channels for this reload timer.
No output to a pin of the reload timer 0.
■ Register List
Control status register (TMCSR:TMCSR0 to TMCSR2)
TMCSR0 Address 00004E
TMCSR1 Address 000056
TMCSR2 Address 00005E
Read/Write →
Initial Value →
Read/Write →
Initial Value →
16-bit timer register (TMR:TMR0 to TMR2)
TMR0 Address 00004A
TMR1 Address 000052
TMR2 Address 00005A
Read/Write →
Initial Value →
Read/Write →
Initial Value →
16-bit reload register (TMRLR:TMRLR0 to TMRLR2)
TMRLR0 Address 000048
TMRLR1 Address 000050
TMRLR2 Address 000058
Read/Write →
Initial Value →
Read/Write →
Initial Value →
152
15
14
13
H
H
–
–
H
–
–
(X)
(X)
(X)
7
6
MOD0
OUTL
–
R/W
R
R/W
(0)
(0)
(0)
15
14
13
H
H
H
R
R
R
(X)
(X)
(X)
7
6
–
R
R
R
(X)
(X)
(X)
15
14
13
H
H
H
W
W
W
(X)
(X)
(X)
7
6
–
W
W
W
(X)
(X)
(X)
12
11
10
CSL2
CSL1
CSL0 MOD2 MOD1
–
–
R/W
R/W
R/W
(0)
(0)
(0)
5
4
3
2
RELD
INTE
UF
R/W
R/W
R/W
(0)
(0)
(0)
12
11
10
R
R
R
(X)
(X)
(X)
5
4
3
2
R
R
R
(X)
(X)
(X)
12
11
10
W
W
W
(X)
(X)
(X)
5
4
3
2
W
W
W
(X)
(X)
(X)
← Bit No.
9
8
R/W
R/W
(0)
(0)
← Bit No.
1
0
CNTE
TRG
R/W
R/W
(0)
(0)
← Bit No.
9
8
R
R
(X)
(X)
← Bit No.
1
0
R
R
(X)
(X)
← Bit No.
9
8
W
W
(X)
(X)
← Bit No.
1
0
W
W
(X)
(X)
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