參數資料
型號: MB90522PFV
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: Quadruple 2-Input Positive-NAND Gates 14-CFP -55 to 125
中文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP120
封裝: PLASTIC, QFP-120
文件頁數: 38/106頁
文件大?。?/td> 1539K
代理商: MB90522PFV
MB90520 Series
38
2. Timebase Timer
The timebase timer is a 18-bit free-run counter (timebase counter) for counting up in synchronization to the
internal count clock (divided-by-2 of oscillation) with an interval timer function for selecting an interval time from
four types : 2
12
/HCLK, 2
14
/HCLK, 2
16
/HCLK, and 2
19
/HCLK.
The timebase timer also has a function for supplying operating clocks for the timer output for the oscillation
stabilization time or the watchdog timer, etc.
(1) Register Configuration
(2) Block Diagram
Timebase timer control register (TBTC)
bit 15
Reserved
bit 14
bit 13
bit 12
bit 11
TBOF
bit 10
bit 9
TBC1 TBC0
bit 8
R/W
R/W
R/W
R/W
R/W
R/W
Address
0000A9
H
TBIE
TBR
1XX00000
B
Initial value
R/W: Readable and writable
— : Undefined bits (read value undefined)
. . .
. . .
To 8/16-bit PPG timer
Timebase timer counter
Divided-by-2
of HCLK
Power-on reset
Start stop-mode
CKSCR : MCS = 1
0*
1
Counter
clear circuit
Interval
timer selector
Clear TBOF
Set TBOF
Timebase timer control register
(TBTC)
Timebase timer
interrupt signal
#12*
2
OF : Overflow
HCLK : Oscillation clock frequency
Switch machine clock from oscillation clock to PLL clock
Interrupt number
*1:
*2:
Reserved
TBIE
TBR
TBOF
TBC1 TBC0
To oscillation stabilization
time selector of clock control block
To watchdog timer
OF
OF
OF
OF
×
2
1
×
2
2
×
2
3
×
2
8
×
2
9
×
2
10
×
2
11
×
2
12
×
2
13
×
2
14
×
2
15
×
2
16
×
2
17
×
2
18
相關PDF資料
PDF描述
MB90523 Quadruple 2-Input Positive-NAND Gates 20-LCCC -55 to 125
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MB90591 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:26; Connector Shell Size:16; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Gender:Female
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