參數(shù)資料
型號(hào): MB673xxx
廠商: Fujitsu Limited
英文描述: CMOS Gate Array
中文描述: CMOS門陣列
文件頁(yè)數(shù): 48/106頁(yè)
文件大?。?/td> 1648K
代理商: MB673XXX
MB90670/675 Series
48
Block diagram of 8/16-bit PPG timer 1
PPG1 underflow
(to PPG0)
Timebase timer output (512/HCLK)
Peripheral clock (1/
φ
)
* : Interrupt number
HCLK : Oscillation clock
φ
: Machine clock frequency
PRLH1
PEN1
Data bus for “H” digits
PCS1 POE1 PIE1 PUF1 MD1
MD0 RESV
Data bus for “L” digits
PPG1 operating mode control register (PPGC1)
PRLL1
Temporary buffer
(PRLBH0)
Reload selector
(L/H selector)
Down counter
(PCNT1)
PPG1
output latch
Pin
Count value
Clear
2
Select signal
reload
Underflow
Reverse
PPG output control circuit
P80/PPG1
Count clock selector
Select signal
R
S
Q
PPG1 reload
register
Operating mode
control signal
PPG0 underflow
CLK
MD0
Interrupt request
#30 (1E
H
)*
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