参数资料
型号: M30600E8GP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件页数: 105/139页
文件大小: 1782K
代理商: M30600E8GP
Mitsubishi microcomputers
M16C / 60 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Timer B
68
(1) Timer mode
In this mode, the timer counts an internally generated count source. (See Table 1.28.) Figure 1.52 shows
the configuration of the timer Bi mode register in timer mode.
Table 1.28. Timer specifications in timer mode
Figure 1.52. Configuration of timer Bi mode register in timer mode
Item
Specification
Count source
f1, f8, f32, fC32
Count operation
Counts down
When the timer underflows, it reloads the reload register contents before
continuing counting
Divide ratio
1/(n+1)
n : Set value
Count start condition
Count start flag is set (= 1)
Count stop condition
Count start flag is reset (= 0)
Interrupt request generation timing
The timer underflows
TBiIN pin function
Programmable I/O port
Read from timer
Count value is read out by reading timer Bi register
Write to timer
When counting stopped
When a value is written to timer Bi register, it is written to both reload register and counter
When counting in progress
When a value is written to timer Bi register, it is written to only reload register
(Transferred to counter at next reload time)
Note 1: Timer B0.
Note 2: Timer B1, timer B2.
Timer Bi mode register
Symbol
Address
When reset
TBiMR(i=0 to 2)
039B 16 to 039D16
00XX0000 2
Bit name
Function
Bit symbol
W
R
b7
b6
b5
b4
b3
b2
b1
b0
Operation mode select bit
0 0 : Timer mode
b1 b0
TMOD1
TMOD0
MR0
Invalid in timer mode
Can be “0” or “1”
MR2
MR1
MR3
0 0 : f1
0 1 : f8
1 0 : f32
1 1 : fC32
TCK1
TCK0
Count source select bit
0
Invalid in timer mode.
This bit can neither be set nor reset. When read in timer mode,
its content is indeterminate.
0
0 (Fixed to “0” in timer mode ; i = 0)
Nothing is assigned (i = 1,2).
This bit can neither be set nor reset. When read, its content is indeterminate.
(Note 1)
(Note 2)
b7 b6
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