Motorola MC92603 Reference Manual page 128

Gigabit media independent interface (GMII). The interface between the
I
Inter-packet gap (IPG). The delay or time gap in between CSMA/CD
Inter Symbol Interference (ISI). Inter Symbol Interference, a distortion
L
Least-significant bit (lsb). The bit of the least value in an address, register,
M
Medial access controller (MAC). The data link sublayer that is responsible
N
Negated. Indicates inactive state of signal has been set. Refers to either
P
Physical coding sublayer (PCS). PCS is defined as part of a sublayer in the
Phase Locked Loop (PLL).
Physical medium attachment (PMA) sublayer. The PMA is defined as part
Parts per million (ppm).
R
Reduced Gigabit Media Independent Interface (RGMII). The reduced
Glossary-2
MC92603 Quad Gigabit Ethernet Transceiver Reference Manual
reconciliation sublayer and the physical coding sublayer (PCS) for a
100 Mbps operation.
packets. The delay provides interframe recovery time for other
CSMA/CD sublayers and for the physical medium.
caused by the high-frequency loss characteristics of the transmission
media.
data element, or instruction encoding.
for transferring data to and from the physical layer.
inputs or outputs.
IEEE Std. 802.3-2002 [4]. The PCS sublayer encodes data bits into
code-groups that can be transmitted over the physical medium. It is
used to coup the Media Independent Interface (MII) and
of a sublayer in the IEEE Std. 802.3-2002 [4]. The PMA is part of the
physical layer that provides transmission, reception, collision
detection, clock recovery, and skew alignment.
interface between the reconciliation sublayer and the physical coding
sublayer (PCS). The interface is reduced from 8-bit wide to 4-bit
wide and data transfer is DDR.
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