AT83C5135 Atmel Corporation, AT83C5135 Datasheet - Page 123

• Manufacturer Part Number: AT83C5135
• Manufacturer: Atmel Corporation

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

7683C–USB–11/07
Table 21-6.
Reset Value = 80h
Table 21-7.
Reset Value = 00h
Bit Number
Bit Number
FEN
6-0
7-4
3-0
7
7
7
-
Mnemonic
UADD[6:0]
Bit Mnemonic
USBADDR Register
USBADDR (S:C6h)
USB Address Register
UEPNUM Register
UEPNUM (S:C7h)
USB Endpoint Number
UADD6
EPNUM[3:0]
FEN
Bit
6
6
-
-
Description
Function Enable
Set this bit to enable the address filtering function.
Cleared this bit to disable the function.
USB Address
This field contains the default address (0) after power-up or USB bus reset.
It will be written with the value set by a SET_ADDRESS request received by the device
firmware.
UADD5
Description
Reserved
The value read from these bits is always 0. Do not set these bits.
Endpoint Number
Set this field with the number of the endpoint which will be accessed when reading
or writing to, UEPDATX Register UEPDATX (S:CFh) USB FIFO Data Endpoint X (X
= EPNUM set in UEPNUM Register UEPNUM (S:C7h) USB Endpoint Number),
UBYCTLX Register UBYCTLX (S:E2h) USB Byte Count Low Register X (X =
EPNUM set in UEPNUM Register UEPNUM (S:C7h) USB Endpoint Number),
UBYCTHX Register UBYCTHX (S:E3h) USB Byte Count High Register X (X =
EPNUM set in UEPNUM Register UEPNUM (S:C7h) USB Endpoint Number) or
UEPCONX Register UEPCONX (S:D4h) USB Endpoint X Control Register. This
value can be 0, 1, 2, 3, 4, or 5.
5
5
-
UADD4
4
4
-
EPNUM3
UADD3
3
3
EPNUM2
AT83C5134/35/36
UADD2
2
2
EPNUM1
UADD1
1
1
EPNUM0
UADD0
0
0
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