參數(shù)資料
型號: PIC16LC716T
廠商: Microchip Technology Inc.
英文描述: 8-Bit CMOS Microcontrollers with A/D Converter and Capture/Compare/PWM
中文描述: 8位CMOS微控制器與A / D轉(zhuǎn)換器和捕捉/比較/ PWM
文件頁數(shù): 39/108頁
文件大小: 1810K
代理商: PIC16LC716T
PIC16C712/716
1999 Microchip Technology Inc.
Preliminary
DS41106A-page 39
7.0
CAPTURE/COMPARE/PWM
(CCP) MODULE(S)
Each CCP (Capture/Compare/PWM) module contains
a 16-bit register, which can operate as a 16-bit capture
register, as a 16-bit compare register or as a PWM
master/slave Duty Cycle register. Table 7-1 shows the
timer resources of the CCP module modes.
Capture/Compare/PWM Register 1 (CCPR1) is com-
prised of two 8-bit registers: CCPR1L (low byte) and
CCPR1H (high byte). The CCP1CON register controls
the operation of CCP1. All are readable and writable.
CCP1CON REGISTER (ADDRESS 17h)
Additional information on the CCP module is available
in the PICmicro Mid-Range Reference Manual,
(DS33023).
TABLE 7-1
CCP MODE - TIMER
RESOURCE
FIGURE 7-1:
FIGURE 7-2:
TRISCCP Register (ADDRESS 87h)
CCP Mode
Timer Resource
Capture
Compare
PWM
Timer1
Timer1
Timer2
U-0
bit7
U-0
R/W-0
DC1B1
R/W-0
DC1B0
R/W-0
CCP1M3
R/W-0
CCP1M2
R/W-0
CCP1M1 CCP1M0
R/W-0
R = Readable bit
W =Writable bit
U = Unimplemented bit, read
as ‘0’
- n =Value at POR reset
bit0
bit 7-6:
bit 5-4:
DC1B1:DC1B0
: PWM Least Significant bits
Capture Mode: Unused
Compare Mode: Unused
PWM Mode: These bits are the two LSbs of the PWM duty cycle. The eight MSbs are found in CCPR1L.
bit 3-0:
CCP1M3:CCP1M0
: CCP1 Mode Select bits
0000
= Capture/Compare/PWM off (resets CCP1 module)
0100
= Capture mode, every falling edge
0101
= Capture mode, every rising edge
0110
= Capture mode, every 4th rising edge
0111
= Capture mode, every 16th rising edge
1000
= Compare mode, set output on match (CCP1IF bit is set)
1001
= Compare mode, clear output on match (CCP1IF bit is set)
1010
= Compare mode, generate software interrupt on match (CCP1IF bit is set, CCP1 pin is unaffected)
1011
= Compare mode, trigger special event (CCP1IF bit is set; CCP1 resets TMR1 and starts an A/D
conversion (if A/D module is enabled))
11xx
= PWM mode
Unimplemented:
Read as '0'
R/W-1
bit7
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
TCCP
R/W-1
R/W-1
TT1CK
R = Readable bit
W =Writable bit
U = Unimplemented bit, read
as ‘0’
- n =Value at POR reset
bit0
bit 7-3:
Reserved bits; Do Not Use
bit 2:
TCCP - Tri state control bit for CCP
0 = Output pin driven
1 = Output pin tristated
bit 1:
Reserved bit; Do Not Use
bit 0:
TT1CK - Tri state control bit for T1CKI pin
0 = T1CKI pin is an output
1 = T1CKI pin is an input
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