MPC8321E Freescale Semiconductor, Inc, MPC8321E Datasheet - Page 18

• Manufacturer Part Number: MPC8321E
• Description: Mpc8321e Powerquicc Ii Pro Processor
• Manufacturer: Freescale Semiconductor, Inc

DUART
7
This section describes the DC and AC electrical specifications for the DUART interface of the
MPC8323E.
7.1
Table 20
7.2
Table 21
8
This section provides the AC and DC electrical characteristics for Ethernet and MII management.
8.1
The electrical characteristics specified here apply to all MII (media independent interface) and RMII
(reduced media independent interface), except MDIO (management data input/output) and MDC
18
Minimum baud rate
Maximum baud rate
Oversample rate
Notes:
1. Actual attainable baud rate will be limited by the latency of interrupt processing.
2. The middle of a start bit is detected as the 8
High-level input voltage
Low-level input voltage OV
High-level output voltage, I
Low-level output voltage, I
Input current (0 V ≤ V
Note:
1. Note that the symbol V
sampled each 16
MPC8323E PowerQUICC™ II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 1
DUART
Ethernet and MII Management
provides the DC electrical characteristics for the DUART interface of the MPC8323E.
provides the AC timing parameters for the DUART interface of the MPC8323E.
DUART DC Electrical Characteristics
DUART AC Electrical Specifications
Ethernet Controller (10/100 Mbps)—MII/RMII Electrical
Characteristics
th
IN
sample.
≤ OV
Parameter
IN
OL
DD
OH
, in this case, represents the OV
DD
= 100 μA
= –100 μA
)
1
Table 20. DUART DC Electrical Characteristics
Parameter
Table 21. DUART AC Timing Specifications
th
sampled 0 after the 1-to-0 transition of the start bit. Subsequent bit values are
IN
symbol referenced in
Symbol
V
V
V
V
I
OH
OL
IN
IH
IL
OV
Table 1
DD
–0.3
Min
—
—
2
> 1,000,000
– 0.2
and
Value
256
16
Table
OV
Freescale Semiconductor
2.
DD
Max
0.8
0.2
±5
—
+ 0.3
baud
baud
Unit
—
Notes
Unit
μA
V
V
V
V
1
2