Datasheet

86
9166DS–AVR-01/12
AT32UC3C
7.9.9 MACB Characteristics
Note: 1. These values are based on simulation and characterization of other AVR microcontrollers manufactured in the same pro-
cess technology. These values are not covered by test limits in production.
Note: 1. These values are based on simulation and characterization of other AVR microcontrollers manufactured in the same pro-
cess technology. These values are not covered by test limits in production.
Table 7-59. Ethernet MAC Signals
(1)
Symbol Parameter Conditions Min. Max. Unit
MAC
1
Setup for MDIO from MDC rising V
VDD
= 3.0V,
drive strength of the pads set to the
highest,
external capacitor = 10pF on MACB
pins
02.6ns
MAC
2
Hold for MDIO from MDC rising 0 0.7 ns
MAC
3
MDIO toggling from MDC falling 0 1.1 ns
Table 7-60. Ethernet MAC MII Specific Signals
(1)
Symbol Parameter Conditions Min. Max. Unit
MAC
4
Setup for COL from TX_CLK rising
V
VDD
= 3.0V,
drive strength of the pads set to the
highest,
external capacitor = 10pF on MACB
pins
0ns
MAC
5
Hold for COL from TX_CLK rising 0 ns
MAC
6
Setup for CRS from TX_CLK rising 0.5 ns
MAC
7
Hold for CRS from TX_CLK rising 0.6 ns
MAC
8
TX_ER toggling from TX_CLK rising 17.3 19.6 ns
MAC
9
TX_EN toggling from TX_CLK rising 15.5 16.2 ns
MAC
10
TXD toggling from TX_CLK rising 14.9 19.2 ns
MAC
11
Setup for RXD from RX_CLK 1.3 ns
MAC
12
Hold for RXD from RX_CLK 2 ns
MAC
13
Setup for RX_ER from RX_CLK 3.6 ns
MAC
14
Hold for RX_ER from RX_CLK 0 ns
MAC
15
Setup for RX_DV from RX_CLK 0.7 ns
MAC
16
Hold for RX_DV from RX_CLK 1.4 ns