AT89C5122 ATMEL [ATMEL Corporation], AT89C5122 Datasheet - Page 98

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AT89C5122

Manufacturer Part Number
AT89C5122
Description
MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet

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98
AT8xC5122/23
HOST
UFI
C51
IN Transactions:
HOST
UFI
C51
OUT Transactions:
OUT DATA0 (n Bytes)
IN
Endpoint FIFO write
NACK
Figure 52. Minimum Intervention from the USB Device Firmware
ACK
IN
interrupt C51
DATA1
Endpoint FIFO read (n bytes)
OUT
DATA1
IN
NACK
DATA1
OUT
ACK
interrupt C51
DATA1
Endpoint FIFO write
4202D–SCR–06/05
ACK

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