參數(shù)資料
型號: MB672xxx
廠商: Fujitsu Limited
英文描述: CMOS Gate Array
中文描述: CMOS門陣列
文件頁數(shù): 47/106頁
文件大?。?/td> 1648K
代理商: MB672XXX
MB90670/675 Series
47
(2) Block Diagram
Block diagram of 8/16-bit PPG timer 0
PRLH0
Timebase timer output (512/HCLK)
Peripheral clock (16/
φ
)
Peripheral clock (4/
φ
)
Peripheral clock (1/
φ
)
PEN0
Data bus for “H” digits
POE0 PIE0 PUF0 PCM1 PCM0 RESV
Data bus for “L” digits
PPG0 operating mode control register (PPGC0)
PPG0 reload
register
PRLL0
Temporary buffer
(PRLBH0)
Reload selector
(L/H selector)
Down counter
(PCNT0)
Count value
Clear
CLK
2
Select signal
reload
Underflow
Pulse selector
PPG0
output latch
Reverse
PPG output
control circuit
Mode control signal
Pin
P46/PPG0
Count clock selector
PPG1 underflow
PPG0 underflow
(to PPG1)
Select signal
* : Interrupt number
HCLK : Oscillation clock
φ
:Machine clock frequency
2
R
S
Q
Interrupt request
#29 (1D
H
)*
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