參數(shù)資料
型號: C8051F005
廠商: Cygnal Technologies
英文描述: 25 MIPS,32k Flash,2.25k Ram,12bit ADC,64 Pin MCU(25 MIPS,32k 閃速存儲(chǔ)器,2.25k Ram,12位 ADC,64 腳 MCU)
中文描述: 25 MIPS的,32K閃存,2.25k羊,12位ADC,64引腳微控制器(25 MIPS的,32K的閃速存儲(chǔ)器,2.25k羊,12位ADC和64腳微控制器)
文件頁數(shù): 153/170頁
文件大?。?/td> 1294K
代理商: C8051F005
4.2001; Rev. 1.3
CYGNAL Integrated Products, Inc.
2001
Page 153
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
PRELIMINARY
20.1.
Each module can be configured to operate independently in one of four operation modes: Edge-triggered Capture,
Software Timer, High Speed Output, or Pulse Width Modulator. Each module has Special Function Registers
(SFRs) associated with it in the CIP-51 system controller. These registers are used to exchange data with a module
and configure the module’s mode of operation.
Table 20.1 summarizes the bit settings in the PCA0CPMn registers used to place the PCA capture/compare modules
into different operating modes. Setting the ECCFn bit in a PCA0CPMn register enables the module’s CCFn
interrupt. Note: PCA0 interrupts must be globally enabled before individual CCFn interrupts are recognized. PCA0
interrupts are globally enabled by setting the EA bit (IE.7) and the EPCA0 bit (EIE1.3) to logic 1. See Figure 20.2
for details on the PCA interrupt configuration.
Capture/Compare Modules
Table 20.1. PCA0CPM Register Settings for PCA Capture/Compare Modules
ECOM
X
CAPP
1
CAPN
0
MAT
0
TOG
0
PWM
0
ECCF
X
Operation Mode
Capture triggered by positive edge on
CEXn
Capture triggered by negative edge on
CEXn
Capture triggered by transition on CEXn
Software Timer
High Speed Output
Pulse Width Modulator
X
0
1
0
0
0
X
X
1
1
1
1
0
0
0
1
0
0
0
0
1
1
0
0
0
1
0
0
0
0
1
X
X
X
0
X = Don’t Care
Figure 20.2. PCA Interrupt Block Diagram
PCA0CN
C
R
C
F
4
C
F
C
C
F
0
C
C
F
2
C
C
F
1
C
C
C
F
3
PCA0MD
C
I
D
L
E
C
F
C
P
S
1
C
P
S
0
0
1
PCA Module 0
PCA Module 1
ECCF1
0
1
ECCF0
0
1
PCA Module 2
ECCF2
0
1
PCA Module 3
ECCF3
0
1
PCA Module 4
ECCF4
PCA Counter/
Timer Overflow
0
1
Interrupt
Priority
Decoder
EPCA0
(EIE.3)
0
1
EA
(IE.7)
0
1
PCA0CPMn
E
C
O
M
n
n
n
E
C
C
F
n
T
O
G
n
P
W
M
n
C
A
P
P
C
A
P
N
M
A
T
n
(for n = 0 to 4)
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