參數(shù)資料
型號： M30100
廠商： Renesas Technology Corp.
英文描述： SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述： 單片16位CMOS微機
文件頁數(shù)： 54/164頁
文件大小： 3302K
代理商： M30100
deveopment
Tentative Specifications REV.E1
Interrupts
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
53
TCIN interrupt
A TCIN interrupt is generated from edges of a TCIN input signal or after 512 divisions of f
RING
.
To use TCIN input signal, set the time measurement input source switching bit (bit 7 of address 009A
16
) of
timer C control register 0 to "0" (TCIN). The level of input to TCIN pin is sampled by one of three sampling
clocks, f1, f8 or f32, selected with the digital filter clock select bit (bits 0 and 1 of address 009B
16
). The input
level is determined when the sampled input level matches three times. (However, if the port P3
3
is read, the
value will be the unfiltered value.) The edge polarity of an interrupt can be rising edge, falling edge, or both
edges using the time measurement edge trigger select bits (bits 3 and 4 of address 009A
16
).
When triggered after 512 divisions of f
RING
, set the time measurement input source switching bit (bit 7 of
address 009A
16
) to "1" (RING512).
Figure 1.12.13 shows the timer C control registers 0 and 1.
Figure 1.12.13 Timer C control registers 0 and 1
Timer C control register 0
Symbol
TCC0
Address
009A
16
When reset
0XX00000
2
Bit name
Function
Bit symbol
R
b7
b6 b5
b4
b3
b2
b1 b0
0 0 : f1
0 1 : f8
1 0 : f32
1 1 : Inhibit
TCC04
TCC02
TCC01
TCC00
TCC03
Nothing is assigned.
When write, set "0". When read, their contents are "0".
Time measurement control bit
AA
AA
AA
Timer C clock select bit
0 : Time measurement disabled
1 : Time measurement enabled
AA
AA
TCC07
b2 b1
Time measurement input edge
trigger bit
Time measurement input
source switching bit
AA
0 : TCIN
1 : RING512
Timer C control register 1
Symbol
TCC1
Address
009B
16
When reset
XXXXXX11
2
Bit name
Function
Bit symbol
W
R
b7
b6 b5
b4
b3
b2
b1
b0
TCC11
TCC10
Nothing is assigned.
When write, set "0". When read, their contents are "0".
AA
AA
0 0 : Rising edge
0 1 : Falling edge
1 0 : Both edges
1 1 : Inhibit
b4 b3
0 0 : Cannot be used
0 1 : f1
1 0 : f8
1 1 : f32
b1 b0
Digital filter clock select bit
Note 1: Change this bit when time measurement is disabled.
Note 2: When using an external RC circuit for the main clock, f
1
cannot be selected for the
Timer C clock.
Note 3: Set the ring oscillation stop bit (CM14) to “0” before setting this bit to “1”.
(Note 1)
(Note 1)
(Note 1)
(Note 3)
(Note)
Note : Input edge becomes active when the same value from TC
IN
pin is sampled
three times in succession.
(Note 2)
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