AT83EC5123 ATMEL Corporation, AT83EC5123 Datasheet - Page 19

• Manufacturer Part Number: AT83EC5123
• Description: (AT8xx512x) Smart Card Reader ICs
• Manufacturer: ATMEL Corporation

4202B–SCR–07/03
Table 12. Port Mode Register 1 - PMOD1 (84h) for AT8xC5123
Reset Value = xxxx 00xxb
Table 13. LED Port Control Register 0 - LEDCON0 (F1h)
Reset Value = 0000 0000b
Bit Number Bit Mnemonic Description
Bit Number
LED3.1
7 - 6
5 - 4
3 - 2
1 - 0
7
7 - 4
3 - 2
1 - 0
7
-
LED3.0
Bit Mnemonic
P5LC1-P5LC0
LED3
LED2
LED1
LED0
6
6
-
LED2.1
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
5
5
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Port 5 Low Configuration bits (Applicable from P5.0 to P5.2 only)
00 Quasi bi-directional
01 Push-pull
10 Input with medium pull-up
11 Input with weak pull-up
Reserved
The value read from this bit is indeterminate. Do not set this bit.
LED2.0
4
4
-
LED1.1
P5LC1
3
3
LED1.0
P5LC0
2
2
AT8xC5122/23
LED0.1
1
1
-
LED0.0
0
0
-
19