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参数资料
| 型号： | MCV18E-I/P |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDIP18 |
| 封装： | 0.300 INCH, LEAD FREE, PLASTIC, DIP-18 |
| 文件页数： | 67/108页 |
| 文件大小： | 1509K |
| 代理商： | MCV18E-I/P |
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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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