MPC8360E/MPC8358E PowerQUICC II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 4
40
Freescale Semiconductor
UCC Ethernet Controller: Three-Speed Ethernet, MII Management
8.3.2
MII Management AC Electrical Specifications
Table 37
provides the MII management AC timing specifications.
Input low voltage
V
IL
—
—
0.80
V
Input current
I
IN
0 V
≤
V
IN
≤
OV
DD
—
±10
μ
A
Table 37. MII Management AC Timing Specifications
At recommended operating conditions with LV
DD
is 3.3 V ± 10%.
Parameter/Condition
Symbol
1
Min
Typ
Max
Unit
Notes
MDC frequency
f
MDC
—
2.5
—
MHz
2
MDC period
t
MDC
—
400
—
ns
—
MDC clock pulse width high
t
MDCH
32
—
—
ns
—
MDC to MDIO delay
t
MDTKHDX
t
MDTKHDV
10
—
—
—
110
ns
3
MDIO to MDC setup time
t
MDRDVKH
10
—
—
ns
—
MDIO to MDC hold time
t
MDRDXKH
0
—
—
ns
—
MDC rise time
t
MDCR
—
—
10
ns
—
MDC fall time
t
MDHF
—
—
10
ns
—
Notes:
1. The symbols used for timing specifications follow the pattern of t
(first two letters of functional block)(signal)(state)(reference)(state)
for
inputs and t
(first two letters of functional block)(reference)(state)(signal)(state)
for outputs. For example, t
MDKHDX
symbolizes management
data timing (MD) for the time t
MDC
from clock reference (K) high (H) until data outputs (D) are invalid (X) or data hold time.
Also, t
MDRDVKH
symbolizes management data timing (MD) with respect to the time data input signals (D) reach the valid state
(V) relative to the t
MDC
clock reference (K) going to the high (H) state or setup time. For rise and fall times, the latter
convention is used with the appropriate letter: R (rise) or F (fall).
2. This parameter is dependent on the csb_clk speed (that is, for a csb_clk of 267 MHz, the maximum frequency is 8.3 MHz
and the minimum frequency is 1.2 MHz; for a csb_clk of 375 MHz, the maximum frequency is 11.7 MHz and the minimum
frequency is 1.7 MHz).
3. This parameter is dependent on the ce_clk speed (that is, for a ce_clk of 200 MHz, the delay is 90 ns and for a ce_clk of
300 MHz, the delay is 63 ns).
Table 36. MII Management DC Electrical Characteristics When Powered at 3.3 V (continued)
Parameter
Symbol
Conditions
Min
Max
Unit