NNDK-MOD5272-KIT NetBurner Inc, NNDK-MOD5272-KIT Datasheet - Page 280

• Manufacturer Part Number: NNDK-MOD5272-KIT
• Description: KIT DEVELOP NETWORK FOR MOD5272
• Manufacturer: NetBurner Inc
• Series: ColdFire®r

Specifications of NNDK-MOD5272-KIT

• Main Purpose: *
• Embedded: *
• Utilized Ic / Part: MOD5272
• Primary Attributes: *
• Secondary Attributes: *
• Processor To Be Evaluated: MOD5272
• Interface Type: RS-232, RS-485, USB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 528-1001

Register Description and Programming Model
12.3.2.15 USB Endpoint 0 Interrupt Mask (EP0IMR) and
Figure 12-18 shows the USB endpoint 0 interrupt mask and general/endpoint 0 interrupt
registers.
12-20
Bits
5–4
3–2
6
1
0
ISO_MODE Isochronous transfer mode. This bit must be set when the endpoint is configured for
FIFO_LVL
IN_DONE
General/Endpoint 0 Interrupt Registers (EP0ISR)
STALL
Name
—
isochronous mode.
0 Non-isochronous transfer mode
1 Isochronous transfer mode
Reserved, should be cleared.
Endpoint n FIFO level for interrupt. This field selects the FIFO level to generate a FIFO_LVL
interrupt. The FIFO_LVL interrupt is generated when the FIFO fills above (OUT) or falls below
(IN) the selected level.
00
01
10
11
This bit controls the USB's response to IN tokens from the host. Set at Reset and on an EOT
event and must be cleared by software when the last byte of a transfer has been written to the
IN-FIFO. This bit is then subsequently set by the USB core when an end of transfer (EOT)
event occurs, indicating that the transfer has been completed. An end of transfer (EOT) event
is indicated by one of the following:
0 CPU has completed writing to the IN-FIFO and transfer is in progress. The USB module
1 Transfer completed or CPU is busy writing to the IN-FIFO. The USB module only sends
Force STALL response. Causes the endpoint to return a STALL handshake when polled by
either IN or OUT token by the USB host controller. The STALL handshake causes the endpoint
to be halted. The STALL bit is not valid for isochronous endpoints. This command bit is
write-only and always returns 0 when read.
0 Default
1 Send STALL handshake
sends all the data in the FIFO, or a zero-length packet when the FIFO is empty.
maximum-sized packets or NAK responses if the FIFO contains less data than the maximum
packet size.
a) An IN packet is transmitted that contains less than the maximum number of bytes
b) A zero length IN packet is transmitted. This occurs when the previously transmitted IN
defined at endpoint configuration.
packet was full, and no more data remains in the IN-FIFO. Hence a single zero length
packet must be sent to indicate EOT.
Table 12-13. EP
IN FIFO
FIFO 25% empty FIFO 25% full
FIFO 50% empty FIFO 50% full
FIFO 75% empty FIFO 75% full
FIFO empty
MCF5272 User’s Manual
OUT FIFO
FIFO full
n
CTL Field Descriptions
Description
MOTOROLA