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參數(shù)資料
| 型號(hào)： | S3C880AXX-AQ |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| 封裝： | 0.600 INCH, SDIP-42 |
| 文件頁數(shù)： | 69/242頁 |
| 文件大小： | 1313K |
| 代理商： | S3C880AXX-AQ |
S3C880A/F880A
PWM and CAPTURE
12-3
PWM2–PWM5
The S3C880A microcontrollers have four 8-bit PWM circuits, called PWM2–PWM5. These 8-bit circuits have the
following components:
— 14-bit counter with 3-bit prescaler
— 8-bit comparators
— 8-bit PWM data registers (PWM2–PWM5)
— PWM output pins (PWM2–PWM5)
The PWM2–PWM5 circuits are controlled by the PWMCON register (F8H, set 1, bank 0).
CPU
CLK
8-bit PWM2-PWM5
Registers
8 x 4
Data Bus
8-bit PWM2-PWM5
Comparators
x 4
8
Lower 8-bit of
14-bit Counter
PWM0/1 Logic
"1" When Reg > Count
"0" When Reg < Count
=
PWM2-PWM5
Output pins
PWM2-PWM5
Output pins
3-bit P.S.
PWMCON.5
Upper 6-bit of
14-bit Counter
Capture Register
6
2
8
CAP Input
PWMCON.1
PWMCON.0
PWMCON.3
IRQ3 (02H)
Data Bus
Figure 12-2. Block Diagram for PWM2–PWM5
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