AT89C5122D-PSTUM Atmel, AT89C5122D-PSTUM Datasheet - Page 121
AT89C5122D-PSTUM
Manufacturer Part Number
AT89C5122D-PSTUM
Description
IC 8051 MCU FLASH 32K 64QFN
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C5122D-PSTUM.pdf
(208 pages)
Specifications of AT89C5122D-PSTUM
Core Processor
8051
Core Size
8-Bit
Speed
48MHz
Connectivity
SmartCard, SPI, UART/USART, USB
Peripherals
LED, POR, WDT
Number Of I /o
46
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFN
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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4202F–SCR–07/2008
Table 73. USB Endpoint FIFO Reset Register - UEPRST (S:D5h)
Reset Value = 0000 0000b
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic Description
EP6RST
EP5RST
EP4RST
EP3RST
EP2RST
EP1RST
EP0RST
EP6RST
Bit
-
6
Reserved
The value read from these bits is always 0. Do not change this bit.
Endpoint 6 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
Endpoint 5 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
Endpoint 4 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
Endpoint 3 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
Endpoint 2 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
Endpoint 1 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
Endpoint 0 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
EP5RST
5
EP4RST
AT83R5122, AT8xC5122/23
4
EP3RST
3
EP2RST
2
EP1RST
1
EP0RST
0
121
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