參數(shù)資料
型號(hào)： MCV18ET-I/SO
元件分類： 微控制器/微處理器
英文描述： FLASH, 20 MHz, RISC MICROCONTROLLER, PDSO18
封裝： 7.50 MM, LEAD FREE, SOIC-18
文件頁(yè)數(shù)： 67/108頁(yè)
文件大?。?/td> 1509K
代理商： MCV18ET-I/SO
2009 Microchip Technology Inc.
DS41399A-page 61
MCV18E
REGISTER 8-2:
ECCPAS: ENHANCED CAPTURE/COMPARE/PWM AUTO-SHUTDOWN
CONTROL REGISTER
R/W-0
U-0
R/W-0
ECCPASE
ECCPAS2
—
ECCPAS0
PSSAC1
PSSAC0
PSSBD1
PSSBD0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
ECCPASE: ECCP Auto-Shutdown Event Status bit
1
= A shutdown event has occurred; ECCP outputs are in shutdown state
0
= ECCP outputs are operating
bit 6
ECCPAS2: ECCP Auto-Shutdown bit 2
1
= RB0 (INT) pin low level (‘0’) causes shutdown
0
= RB0 (INT) pin has no effect on ECCP
bit 5
Unimplemented: Read as ‘0’
bit 4
ECCPAS0: ECCP Auto-Shutdown bit ‘0’
1
= RB4 pin low level (‘0’) causes shutdown
0
= RB4 pin has no effect on ECCP
bit 3-2
PSSACn: Pins P1A and P1C Shutdown State Control bits
00
= Drive pins P1A and P1C to ‘0’
01
= Drive pins P1A and P1C to ‘1’
1x
= Pins P1A and P1C tri-state
bit 1-0
PSSBDn: Pins P1B and P1D Shutdown State Control bits
00
= Drive pins P1B and P1D to ‘0’
01
= Drive pins P1B and P1D to ‘1’
1x
= Pins P1B and P1D tri-state
Note 1: The auto-shutdown condition is a level-
based signal, not an edge-based signal.
As long as the level is present, the auto-
shutdown will persist.
2: Writing to the ECCPASE bit is disabled
while
an
auto-shutdown
condition
persists.
3: Once the auto-shutdown condition has
been removed and the PWM restarted
(either through firmware or auto-restart),
the PWM signal will always restart at the
beginning of the next PWM period.
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