參數(shù)資料
型號: EP7212-CV-A
廠商: CIRRUS LOGIC INC
元件分類: 微控制器/微處理器
英文描述: HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
中文描述: 32-BIT, MROM, 74 MHz, RISC MICROCONTROLLER, PQFP208
封裝: LQFP-208
文件頁數(shù): 75/136頁
文件大?。?/td> 2289K
代理商: EP7212-CV-A
EP7212
DS474PP1
75
5.6
LEDFLSH Register
ADDRESS: 0x8000.22C0
The output is enabled whenever LEDFLSH[6] = 1. When enabled, PDDDR[0] needs to be configured
as an output pin and the bit cleared to ‘0’ (See
PDDDR Port D Data Direction Register
). When the
LED Flasher is disabled, the pin defaults to being used as Port D bit 0. Thus, this will ensure that the
LED will be off when disabled.
The flash rate is determined by the LEDFLSH[1:0] bits, in the following way:
6
5:2
1:0
Enable
Duty ratio
Flash rate
LEDFLSH[1:0]
00
01
10
11
Flash Period (sec)
1
2
3
4
Table 41. LED Flash Rates
LEDFLSH[5:2]
Duty Ratio
(time on: time off)
01:15
02:14
03:13
04:12
05:11
06:10
07:09
08:08
LEDFLSH[5:2]
Duty Ratio
(time on: time off)
09:07
10:06
11:05
12:04
13:03
14:02
15:01
16:00 (continually on)
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Table 42. LED Duty Ratio
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