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參數(shù)資料
型號: W90220F
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: PA-RISC Embedded Micro-Controller(惠普PA-RISC結(jié)構(gòu)的32位嵌入式微控制器)
中文描述: 32-BIT, 150 MHz, RISC PROCESSOR, PQFP208
封裝: PLASTIC, QFP-208
文件頁數(shù): 73/79頁
文件大小: 501K
代理商: W90220F
W90220F
73
The above information is the exclusive intellectual property of Winbond Electroncs Corp. and shall not be dsiclosed or distributed or reproduced without permission from
Version 0.84
Winbond.
5.2.7 TIMER REGISTERS
There are four registers included in the Timer. The IO address map is allocated from 0xf0000040 to 0xf0000043.
Table 5.2.7-1 Timer Register Map (IO base (BA) : 0xf0000000)
Port Addr.
Symbol
Access
Description
BA + 0x40
TCR1
R/W
Timer Control Register 1
BA + 0x41
TICR1
R/W
Timer Initial Control Register 1
BA + 0x42
TCR2
R/W
Timer Control Register 2
BA + 0x43
TICR2
R/W
Timer Initial Control Register 2
Timer Control Register1 (TCR1)
Port address : 0x00000040
Read/Write
Power-on Default : --
0
1
2
3
23
24 31
TI
CE
IE
Reserved
Pre-scale
Bit 0 Timer interrupt bit : The timer sets this bit to one to indicate that it has decremented to
zero. this bit remain one until software sets it to zero.
Bit1 Counter Enable bit : Setting the CE bit to one causes the timer to begin decrementing
Setting the CE bit to zero stops the timer.
Bit2 Interrupt Enable bit : When IE is set to one and the counter decrements to zero,
the timer asserts its interrupt signal to interrupt CPU.
Bit24_31 Pre-Scalar : A pre-scalar value can be used to divide the input clock.
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