參數(shù)資料
型號: ZPSD512B1-15JI
英文描述: Field-Programmable Peripheral
中文描述: 現(xiàn)場可編程外圍
文件頁數(shù): 92/153頁
文件大小: 1036K
代理商: ZPSD512B1-15JI
PSD5XX Famly
89
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
*
*
*
*
FrezAck3
FrezAck2
FrezAck1
FrezAck0
NOTES:
At RESET all these bits intialize as 0's.
*
= Not used.
9.6.2.6 Status Flags Register
There are eight READ-ONLY status flags. The lower four bits represent Freeze
Acknowledge bits.
Counter/Timer
Registers
(Cont.)
FrezAck Bits
These Freeze Acknowledge bits are useful in the Freeze/Freeze Acknowledge protocol.
After the Microcontroller senses that the FrezAck bit is being set it proceeds to access the
Image Register for a read or write operation.
FrezAck0 Bit:
When this bit is
1:
Image Register Access is granted.
0:
Image Register Access is not granted.
FrezAck1 Bit:
When this bit is
1:
Image Register Access is granted.
0:
Image Register Access is not granted.
FrezAck2 Bit:
When this bit is
1:
Image Register Access is granted.
0:
Image Register Access is not granted.
FrezAck3 Bit:
When this bit is
1:
Image Register Access is granted.
0:
Image Register Access is not granted.
DLCY Register:
Bits
<
4:0
>
of the DLCY register are used to assign Delay Cycles to the Counter/Timer.
Various Clock Scaling values possible are 0 through 31 (decimal).
At RESET these bits initialize as 0. If necessary, the user has the option to set these bits up
to generate Delay Cycles (DLCY) to scale down the Counter/Timer clock (see Table 24).
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
*
*
*
DLCY4
DLCY3
DLCY2
DLCY1
DLCY0
NOTE:
*
= Not used.
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