AT83C5122_08 ATMEL [ATMEL Corporation], AT83C5122_08 Datasheet - Page 61
AT83C5122_08
Manufacturer Part Number
AT83C5122_08
Description
C51 Microcontroller with USB and Smart Card Reader Interfaces
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT83C5122_08.pdf
(208 pages)
- Current page: 61 of 208
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4202F–SCR–07/2008
Table 40. LED Port Control Register 0 - LEDCON0 (F1h)
Reset Value = 0000 0000b
Table 41. LED Port Control Register 1- LEDCON1 (F1h) only for AT8xC5122
Reset Value = 0000 0000b
Bit Number Bit Mnemonic Description
Bit Number Bit Mnemonic Description
LED3.1
7 - 6
5 - 4
3 - 2
1 - 0
7 - 6
5 - 4
3 - 2
1 - 0
7
7
-
LED3.0
LED3
LED2
LED1
LED0
LED6
LED5
LED4
6
6
-
LED2.1
LED6.1
Port LED3 Configuration bits
00 LED control disabled
01 2 mA current source when P3.7 is configured as Quasi-bi-directional mode
10 4 mA current source when P3.7 is configured as Quasi-bi-directional mode
11 10 mA current source when P3.7 is configured as Quasi-bidirect. mode
Port LED2 Configuration bits
00 LED control disabled
01 2 mA current source when P3.6 is configured as Quasi-bi-directional mode
10 4 mA current source when P3.6 is configured as Quasi-bi-directional mode
11 10 mA current source when P3.6 is configured as Quasi-bidirect. mode
Port LED1 Configuration bits
00 LED control disabled
01 2 mA current source when P3.4 is configured as Quasi-bi-directional mode
10 4 mA current source when P3.4 is configured as Quasi-bi-directional mode
11 10 mA current source when P3.4 is configured as Quasi-bidirect. mode
Port LED0 Configuration bits
00 LED control disabled
01 2 mA current source when P3.2 is configured as Quasi-bi-directional mode
10 4 mA current source when P3.2 is configured as Quasi-bi-directional mode
11 10 mA current source when P3.2 is configured as Quasi-bidirect. mode
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Port LED6 Configuration bits
00 LED control disabled
01 2 mA current source when P4.5 is configured as Quasi-bi-directional mode
10 4 mA current source when P4.5 is configured as Quasi-bi-directional mode
11 10 mA current source when P4.5 is configured as Quasi-bidirect. mode
Port LED5 Configuration bits
00 LED control disabled
01 2 mA current source when P4.4 is configured as Quasi-bi-directional mode
10 4 mA current source when P4.4 is configured as Quasi-bi-directional mode
11 10 mA current source when P4.4 is configured as Quasi-bidirect. mode
Port LED0 Configuration bits
00 LED control disabled
01 2 mA current source when P4.3 is configured as Quasi-bi-directional mode
10 4 mA current source when P4.3 is configured as Quasi-bi-directional mode
11 10 mA current source when P4.3 is configured as Quasi-bidirect. mode
5
5
LED2.0
LED6.0
AT83R5122, AT8xC5122/23
4
4
LED1.1
LED5.1
3
3
LED1.0
LED5.0
2
2
LED0.1
LED4.1
1
1
LED0.0
LED4.0
0
0
61
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