參數資料
型號： M37920FCCHP
廠商： Mitsubishi Electric Corporation
英文描述： Single Chip 16 Bits CMOS Microcomputer(16位單片機)
中文描述： 單片微機16位的CMOS（16位單片機）
文件頁數： 53/158頁
文件大?。?/td> 1261K
代理商： M37920FCCHP
53
M37920FCCGP, M37920FCCHP
M37920FGCGP, M37920FGCHP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
MITSUBISHI MICROCOMPUTERS
TIMER B
Figure 44 shows a block diagram of timer B.
Timer B has three modes: timer mode, event counter mode, and
pulse period measurement/pulse width measurement mode. The
mode is selected with bits 0 and 1 of the timer Bi mode register (i=0
to 2). Each of these modes is described below.
(1) Timer mode [00]
Figure 45 shows the bit configuration of the timer Bi mode register
during timer mode. Bits 0 and 1 of the timer Bi mode register must
always be “0” in timer mode.
Bits 6 and 7 are used to select the clock source. The counting of the
selected clock starts when the count start bit is “1” and stops when
“0”.
As shown in Figure 30, the timer Bi count start bit is at the same ad-
dress as the timer Ai count start bit. The count is decremented, an
interrupt occurs, and the interrupt request bit in the timer Bi interrupt
control register is set when the contents becomes 0000
16
. At the
same time, the contents of the reload register is stored in the counter
and count is continued.
Timer Bi does not have a pulse output function or a gate function like
timer A.
When data is written to timer Bi halted, it is written to the reload reg-
ister and the counter. When data is written to timer Bi which is busy,
the data is written to the reload register, but not to the counter. The
new data is reloaded from the reload register to the counter at the
next reload time and counting continues.
The contents of the counter can be read at any time.
Fig. 44 Block diagram of timer B
Data bus (odd)
Data bus (even)
Reload register (16)
Counter (16)
Count start register
Note:
Perform a write and read to/from timer Bi register in the condition of 16-bit data length : data length flag (m) =
“
0
”
.
(Address 40
16
)
Counter reset
circuit
(Low-order 8 bits)
(High-order 8 bits)
Addresses
Timer B0 51
16
50
16
Timer B1 53
16
52
16
Timer B2 55
16
54
16
Event counter mode
Timer mode
Pulse period measurement/Pulse
width measurement mode
Count source select bits
f
2
f
16
f
64
f
512
TBi
IN
(i = 0 to 2)
Polarity selection
and edge pulse
generator
相關PDF資料
PDF描述
M37920FGCHP Single Chip 16 Bits CMOS Microcomputer(16位單片機)
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相關代理商/技術參數
參數描述
M37920FGCGP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
M37920FGCHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
M37920S4CGP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER
M37P75C4P3 功能描述:汽車連接器 Pin Contact RoHS:否 制造商:Amphenol SINE Systems 產品:Contacts 系列:ATP 位置數量: 型式:Female 安裝風格: 端接類型: 觸點電鍍:Nickel
M37S07K4F3 功能描述:汽車連接器 Sckt Contact RoHS:否 制造商:Amphenol SINE Systems 產品:Contacts 系列:ATP 位置數量: 型式:Female 安裝風格: 端接類型: 觸點電鍍:Nickel
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