参数资料
型号: C8051F002R
厂商: Silicon Laboratories Inc
文件页数: 63/171页
文件大小: 0K
描述: IC 8051 MCU 32K FLASH 32LQFP
标准包装: 1
系列: C8051F00x
核心处理器: 8051
芯体尺寸: 8-位
速度: 20MHz
连通性: SMBus(2 线/I²C),SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,温度传感器,WDT
输入/输出数: 8
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.6 V
数据转换器: A/D 4x12b; D/A 2x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 32-LQFP
包装: 剪切带 (CT)
其它名称: 336-1002-1
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
20.1.
Capture/Compare Modules
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.
Table 20.1. PCA0CPM Register Settings for PCA Capture/Compare Modules
ECOM
CAPP
CAPN
MAT
TOG
PWM
ECCF
Operation Mode
X
1
0
X
Capture triggered by positive edge on
CEXn
X
0
1
0
X
Capture triggered by negative edge on
CEXn
X
1
0
X
Capture triggered by transition on CEXn
1
0
1
0
X
Software Timer
1
0
1
0
X
High Speed Output
1
0
X
0
1
X
Pulse Width Modulator
X = Don’t Care
Figure 20.2. PCA Interrupt Block Diagram
PCA0CN
C
F
C
R
C
F
0
C
F
2
C
F
1
C
F
4
C
F
3
PCA0MD
C
I
D
L
E
C
F
C
P
S
1
C
P
S
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
(EIE1.3)
0
1
EA
(IE.7)
0
1
PCA0CPMn
E
C
O
M
n
E
C
F
n
T
O
G
n
P
W
M
n
C
A
P
n
C
A
P
N
n
M
A
T
n
(for n = 0 to 4)
155
Rev. 1.7
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