AT83C5135 Atmel Corporation, AT83C5135 Datasheet - Page 74
AT83C5135
Manufacturer Part Number
AT83C5135
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT83C5134.pdf
(166 pages)
Specifications of AT83C5135
Max. Operating Frequency
32 MHz
Cpu
8051-12C
Max I/o Pins
34
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
1
Sram (kbytes)
1.25
Eeprom (bytes)
512
Operating Voltage (vcc)
2.7 to 3.6
Timers
4
Mask Rom (kbytes)
16
Watchdog
Yes
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18. Programmable LED
74
AT83C5134/35/36
AT83C5134/35/36 have up to 4 programmable LED current sources, configured by the register
LEDCON.
Table 18-1.
LEDCON (S:F1h) LED Control Register
Reset Value = 00h
Bit Number
7:6
5:4
3:2
1:0
7
LED3
Bit
Mnemonic
LEDCON Register
LED3
LED2
LED1
LED0
6
Description
Port LED3
0
0
1
1
Port /LED2
0
0
1
1
Port/ LED1
0
0
1
1
Port/ LED0
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
5
LED2
Configuration
Standard C51 Port
2 mA current source when P3.7 is low
4 mA current source when P3.7 is low
10 mA current source when P3.7 is low
Configuration
Standard C51 Port
2 mA current source when P3.6 is low
4 mA current source when P3.6 is low
10 mA current source when P3.6 is low
Configuration
Standard C51 Port
2 mA current source when P3.5 is low
4 mA current source when P3.5 is low
10 mA current source when P3.5 is low
Configuration
Standard C51 Port
2 mA current source when P3.3 is low
4 mA current source when P3.3 is low
10 mA current source when P3.3 is low
4
3
LED1
2
1
LED0
7683C–USB–11/07
0
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