MPC8313CZQADDC Freescale Semiconductor, MPC8313CZQADDC Datasheet - Page 1064
MPC8313CZQADDC
Manufacturer Part Number
MPC8313CZQADDC
Description
Microprocessors - MPU 8313 REV2.2 PB NO EN EXT
Manufacturer
Freescale Semiconductor
Datasheet
1.MPC8313CZQADDC.pdf
(1214 pages)
Specifications of MPC8313CZQADDC
Processor Series
MPC8313
Core
e300
Data Bus Width
16 bit
Maximum Clock Frequency
133 MHz
Program Memory Size
16 KB
Data Ram Size
16 KB
Interface Type
I2C
Mounting Style
SMD/SMT
Package / Case
PBGA
Number Of Programmable I/os
32
Number Of Timers
4
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Universal Serial Bus Interface
16.8.3.4
The behaviors of the device controller for interrupt and bulk endpoints are identical. All valid IN and OUT
transactions to bulk pipes will handshake with a NAK unless the endpoint had been primed. Once the
endpoint has been primed, data delivery will commence.
A dTD will be retired by the device controller when the packets described in the transfer descriptor have
been completed. Each dTD describes N packets to be transferred according to the USB Variable Length
transfer protocol. The formula and table on the following page describe how the device controller
computes the number and length of the packets to be sent/received by the USB vary according to the total
number of bytes and maximum packet length.
With Zero Length Termination (ZLT) = 0
With Zero Length Termination (ZLT) = 1
TX-dTD is complete when:
RX-dTD is complete when:
16-136
•
•
All packets described dTD were successfully transmitted. *** Total bytes in dTD will equal zero
when this occurs.
All packets described in dTD were successfully received. *** Total bytes in dTD will equal zero
when this occurs.
N = INT(number of bytes/max. packet length) + 1
N = MAXINT(number of bytes/max. packet length)
Interrupt/Bulk Endpoint Operational Model
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
The MULT field in the dQH must be set to ‘00’ for bulk, interrupt, and
control endpoints.
Table 16-86. Variable Length Transfer Protocol Example (ZLT = 0)
Table 16-87. Variable Length Transfer Protocol Example (ZLT = 1)
Bytes
Bytes
(dTD)
(dTD)
511
512
512
511
512
512
Max. Packet
Max. Packet
Length
Length
(dQH)
(dQH)
256
256
512
256
256
512
N
N
2
3
2
2
2
1
NOTE
256
256
512
256
256
512
P1
P1
255
256
255
256
P2
P2
0
P3
P3
0
Freescale Semiconductor
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