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W83877TF

W83877TF首页预览图
型号: W83877TF
PDF文件:
  • W83877TF PDF文件
  • W83877TF PDF在线浏览
功能描述: WINBOND I/O
PDF文件大小: 968.02 Kbytes
PDF页数: 共154页
制造商: WINBOND[Winbond]
制造商LOGO: WINBOND[Winbond] LOGO
制造商网址: http://www.winbond.com
捡单宝W83877TF
PDF页面索引
120%
W83877TF/W83877TG
-116 -
11.4.8 Power Management 1 Control Register 4 (PM1CTL4)
Register Location: <CR33>+7H System I/O Space
Default Value: 00h
Attribute: Read/write
Size: 8 bits
1
2
34567
0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
BIT NAME DESCRIPTION
0-7 Reserved Reserved. These bits always return a value of zero.
11.4.9 Power Management 1 Timer 1 (PM1TMR1)
Register Location: <CR33>+8H System I/O Space
Default Value: 00h
Attribute: Read only
Size: 8 bits
1
2
34567
0
TMR_VAL0
TMR_VAL1
TMR_VAL2
TMR_VAL3
TMR_VAL4
TMR_VAL5
TMR_VAL6
TMR_VAL7
BIT NAME DESCRIPTION
0-7 TMR_VAL This read-only field returns the running count of the power management
timer. This is a 24-bit counter that runs off of a 3.579545 MHZ clock, and
counts while in the system working state. The timer is reset and then
continues counting until the CLKIN input the the chip is stopped. If the clock
is restarted without a MR reset, then the counter will continue counting from
where it stopped. The TMR_STS bit is set any time the last bit of the timer
(bit 23) goes from 0 to 1 or from 1 to 0. If the TMR_EN bit is set, the setting
of the TMR_STS bit will generate an SCI interrupt.
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