mpc8536e Freescale Semiconductor, Inc, mpc8536e Datasheet - Page 61

• Manufacturer Part Number: mpc8536e
• Description: Mpc8536e Powerquicctm Iii Integrated Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

The IEEE 1588 AC timing specifications are in
2.10
The electrical characteristics specified here apply to MII management interface signals EC_MDIO (management data
input/output) and EC_MDC (management data clock). The electrical characteristics for GMII, SGMII, RGMII, RMII, TBI and
RTBI are specified in
Freescale Semiconductor
At recommended operating conditions with L/TV
TSEC_1588_CLK clock period
TSEC_1588_CLK duty cycle
TSEC_1588_CLK peak-to-peak jitter
Rise time eTSEC_1588_CLK (20%–80%)
Fall time eTSEC_1588_CLK (80%–20%)
TSEC_1588_CLK_OUT clock period
TSEC_1588_CLK_OUT duty cycle
TSEC_1588_PULSE_OUT
TSEC_1588_TRIG_IN pulse width
Note:
1. When TMR_CTRL[CKSEL]=00, the external TSEC_1588_CLK input is selected as the 1588 timer reference clock source,
2. It need to be at least two times of clock period of clock selected by TMR_CTRL[CKSEL]. See the MPC8536E
with the timing defined in the Table above. The maximum value of t
maximum clock cycle period of the equivalent interface speed that the eTSEC1 port is running
When eTSEC1 is configured to operate in the parallel mode, the T
TSEC1_TX_CLK. When eTSEC1 operates in SGMII mode, the maximum value of t
recovered clock from SGMII SerDes. For example, for 10/100/1000 Mbps modes, the maximum value of t
2800, 280, and 56 ns respectively.
See the MPC8536E PowerQUICC™ III Integrated Communications Processor Reference Manual for a description of
TMR_CTRL registers.
PowerQUICC™ III Integrated Processor Reference Manual for a description of TMR_CTRL registers.
Parameter/Condition
Ethernet Management Interface Electrical Characteristics
MPC8536E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 2
Section 2.9, “Ethernet: Enhanced Three-Speed Ethernet (eTSEC), MII Management”
Table 43. eTSEC IEEE 1588 AC Timing Specifications
DD
of 3.3 V ± 5%.
/t
t
t
t
t
t
T1588CLKOUT
T1588CLKOTH
t
T1588CLKINR
T1588CLKOUT
T1588CLKINJ
T1588CLKINF
Table
t
T1588TRIGH
/t
t
T1588CLKH
t
Symbol
T1588CLK
T1588CLK
T1588OV
43.
2*t
Ethernet Management Interface Electrical Characteristics
2*t
T1588CLK_MAX
T1588CLK
Min
3.8
1.0
1.0
0.5
TX_CLK
40
30
—
T1588CLK
is the maximum clock period of the
is defined in terms of T
Typ
50
50
—
—
—
—
—
—
—
T1588CLK
T
TX_CLK
is defined in terms of the
Max
250
2.0
2.0
3.0
60
70
—
—
.
*7
TX_CLK
T1588CLK
Unit
, which is the
ns
ps
ns
ns
ns
ns
ns
%
%
will be
Note
—
—
—
—
—
—
—
1
2
61