mpc8378e Freescale Semiconductor, Inc, mpc8378e Datasheet - Page 30
mpc8378e
Manufacturer Part Number
mpc8378e
Description
Powerquicc Ii Pro Processor Hardware Specifications
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MPC8378E.pdf
(128 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
mpc8378eCVRAGD
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
mpc8378eCVRAJF
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
mpc8378eCVRALG
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
mpc8378eCVRALG
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
mpc8378eCVRANG
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
mpc8378eCVRANGA
Manufacturer:
MAXIM
Quantity:
47
Company:
Part Number:
mpc8378eVRAGD
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
mpc8378eVRAGD
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
mpc8378eVRAJF
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
mpc8378eVRAJF
Manufacturer:
FREESCAL
Quantity:
285
Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
8.3.2
Table 30
intended to be used with, and should not be clocked by, a spread spectrum clock source.
8.3.3
This section describes the MII transmit and receive AC timing specifications.
8.3.3.1
Table 31
30
At recommended operating conditions with LV
L1_SD_REF_CLK/_B reference clock cycle time
L1_SD_REF_CLK/_B rise/fall time (80%-20%)
L1_SD_REF_CLK/_B duty cycle (@50% L1_ n V
L1_SD_REF_CLK/_B cycle to cycle clock jitter (period
jitter)
L1_SD_REF_CLK/_B phase jitter peak-to-peak.
Deviation in edge location with respect to mean edge
location.
Note:
1
2
TX_CLK clock period 10 Mbps
TX_CLK clock period 100 Mbps
TX_CLK duty cycle
TX_CLK to MII data TXD[3:0], TX_ER, TX_EN delay
TX_CLK data clock rise (20%–80%)
TX_CLK data clock fall (80%–20%)
Note:
Both options provide serial interface bit rate of 1.25 Gbps. 8 ns only applies when 125 MHz SerDes1 clock frequency is
selected during POR.
Tolerance of ±100 ppm.
lists the AC timing specifications. Note that L1_SD_REF_CLK and L1_SD_REF_CLK are not
provides the MII transmit AC timing specifications.
AC Requirements for SGMII L1_SD_REF_CLK and L1_SD_REF_CLK
MII AC Timing Specifications
MII Transmit AC Timing Specifications
Parameter/Condition
Table 30. L1_SD_REF_CLK and L1_SD_REF_CLK AC Requirements
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 3
Parameter
Table 31. MII Transmit AC Timing Specifications
DD
of 3.3 V ± 5%.
100 MHz
125 MHz
DD
)
t
CK_RISE
Symbol
t
CK_REF
t
t
t
ck_dty
t
Symbol
MTXH/
CKPJ
CKCJ
t
MTKHDX
t
t
/t
t
t
MTXR
MTXF
MTX
MTX
CK_FALL
t
MTX
1
45%
Min
–50
—
—
—
Min
1.0
1.0
35
—
—
1
Typical
10
—
—
—
—
Typical
8
400
40
—
—
—
5
Freescale Semiconductor
55%
Max
100
50
—
1
Max
4.0
4.0
—
—
65
15
Unit
ns
ns
ps
ps
ps
Unit
Notes
ns
ns
ns
ns
ns
%
1, 2
—
—
—
—