參數(shù)資料
型號: MB90P224A
廠商: Fujitsu Limited
英文描述: 8-Bit Proprietary Microcontroller(8位專用微控制器)
中文描述: 8位微控制器專利(8位專用微控制器)
文件頁數(shù): 58/105頁
文件大?。?/td> 1130K
代理商: MB90P224A
MB90220 Series
58
12. Watchdog Timer and Timebase Timer Functions
The watchdog timer consists of a 2-bit watchdog counter using carry from an 18-bit timebase timer as the clock
source, a control register, and a watchdog reset control section. The timebase timer consists of an 18-bit timer
and an interval interrupt control circuit.
(1) Register Configuration
(2) Block Diagram
0000A8
H
PONR
STBR
WRST
ERST
SRST
WTE
WT1
WT0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
0000A9
H
(—)
(—)
(—)
(R/W)
(R/W)
(R)
(R/W)
(R/W)
TBIE
TBOF
TBR
TBC1
TBC0
bit15
bit14
bit13
bit12
bit11
bit10
bit9
bit8
WDTC
TBTC
XXXXXXXX
- - - XXXXX
Register name Address
Register name Address
Initial value
Initial value
(R)
(R)
(R)
(R)
(R)
(W)
(W)
(W)
Watchdog Timer Control Register (WDTC)
Timebase Timer Control Register (TBTC)
TBTC
TBC1
TBC0
TBR
TBIE
TBOF
Selector
AND
Q
R
S
Selector
Timebase
interrupt
WTC
WT1
WT0
WTE
PONR
STBR
WRST
ERST
SRST
From RST bit of STBYC register
RST pin
From hardware standby controller
From power-on signal generator
WDGRST
To internal reset signal generator
2-bit counter
OF
CLR
Watchdog reset
signal generator
CLR
2
12
2
14
2
16
2
18
TBTRES
Clock input
Timebase timer
2
14
2
16
2
17
2
18
Oscillation clock
F
2
M
相關(guān)PDF資料
PDF描述
MB90223 8-Bit Proprietary Microcontroller(8位專用微控制器)
MB90P224B 8-Bit Proprietary Microcontroller(8位專用微控制器)
MB90P224BPF 16-Bit Edge-Triggered D-type Flip-Flops With 3-State Outputs 48-CFP -55 to 125
MB90W224A 16-bit Proprietary Microcontroller
MB90W224B 16-bit Proprietary Microcontroller
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