MPC8349ECVVAGDB Freescale Semiconductor, MPC8349ECVVAGDB Datasheet - Page 28

• Manufacturer Part Number: MPC8349ECVVAGDB
• Description: IC MPU POWERQUICC II 672-TBGA
• Manufacturer: Freescale Semiconductor

Specifications of MPC8349ECVVAGDB

• Processor Type: MPC83xx PowerQUICC II Pro 32-Bit
• Speed: 400MHz
• Voltage: 1.2V
• Mounting Type: Surface Mount
• Package / Case: 672-TBGA
• For Use With: MPC8349E-MITX-GP - KIT REFERENCE PLATFORM MPC8349EMPC8349E-MITXE - BOARD REFERENCE FOR MPC8349MPC8349EA-MDS-PB - KIT MODULAR DEV SYSTEM MPC8349E
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Ethernet: Three-Speed Ethernet, MII Management
8.2.3
This section describes the TBI transmit and receive AC timing specifications.
8.2.3.1
Table 29
Figure 13
28
At recommended operating conditions with LV
GTX_CLK clock period
GTX_CLK duty cycle
GTX_CLK to TBI data TXD[7:0], TX_ER, TX_EN delay
GTX_CLK clock rise (20%–80%)
GTX_CLK clock fall time (80%–20%)
GTX_CLK125 reference clock period
GTX_CLK125 reference clock duty cycle
Notes:
1. The symbols for timing specifications follow the pattern of t
2. This symbol represents the external GTX_CLK125 and does not follow the original symbol naming convention
and t
timing (TT) with respect to the time from t
or setup time. Also, t
the referenced data signals (D) reach the invalid state (X) or hold time. In general, the clock reference symbol is based on
three letters representing the clock of a particular function. For example, the subscript of t
(TX) clock. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall).
(first two letters of functional block)(reference)(state)(signal)(state)
provides the TBI transmit AC timing specifications.
shows the TBI transmit AC timing diagram.
MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 12
TBI AC Timing Specifications
TBI Transmit AC Timing Specifications
GTX_CLK
Parameter/Condition
TXD[7:0]
TX_EN
TX_ER
TTKHDX
symbolizes the TBI transmit timing (TT) with respect to the time from t
Table 29. TBI Transmit AC Timing Specifications
Figure 13. TBI Transmit AC Timing Diagram
t
TTXH
DD
/OV
TTX
DD
t
(K) going high (H) until the referenced data signals (D) reach the valid state (V)
TTX
of 3.3 V ± 10%.
for outputs. For example, t
(first two letters of functional block)(signal)(state)(reference)(state)
t
G125H
t
Symbol
TTXH
t
t
TTXF
TTKHDX
t
t
t
G125
t
TTXR
TTXF
TTX
/t
/t
TTX
G125
2
1
t
TTKHDX
t
TTXR
Min
1.0
40
45
—
—
—
—
TTKHDV
TTX
Typ
represents the TBI (T) transmit
8.0
8.0
symbolizes the TBI transmit
—
—
—
—
—
TTX
Freescale Semiconductor
(K) going high (H) until
Max
5.0
1.0
1.0
60
55
—
—
for inputs
Unit
ns
ns
ns
ns
ns
ns
%