参数资料
型号: MPC8378ECVRAJF
厂商: Freescale Semiconductor
文件页数: 53/128页
文件大小: 0K
描述: MPU POWERQUICC II PRO 689-PBGA
标准包装: 27
系列: MPC83xx
处理器类型: 32-位 MPC83xx PowerQUICC II Pro
速度: 533MHz
电压: 1V
安装类型: 表面贴装
封装/外壳: 689-BBGA 裸露焊盘
供应商设备封装: 689-TEPBGA II(31x31)
包装: 托盘
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
30
Freescale Semiconductor
8.3.2
AC Requirements for SGMII L1_SD_REF_CLK and L1_SD_REF_CLK
This table lists the AC timing specifications. Note that L1_SD_REF_CLK and L1_SD_REF_CLK are not
intended to be used with, and should not be clocked by, a spread spectrum clock source.
8.3.3
MII AC Timing Specifications
This section describes the MII transmit and receive AC timing specifications.
8.3.3.1
MII Transmit AC Timing Specifications
This table provides the MII transmit AC timing specifications.
Table 30. L1_SD_REF_CLK and L1_SD_REF_CLK AC Requirements
Parameter/Condition
Symbol
Min
Typical
Max
Unit
Note
L1_SD_REF_CLK/_B reference clock cycle time
100 MHz
125 MHz
tCK_REF
10
8
—ns
1, 2
L1_SD_REF_CLK/_B rise/fall time (80%-20%)
tCK_RISE/tCK_FALL
——
1
ns
L1_SD_REF_CLK/_B duty cycle (@50% L1_
nVDD)tck_dty
45%
55%
ps
L1_SD_REF_CLK/_B cycle to cycle clock jitter (period
jitter)
tCKCJ
100
ps
L1_SD_REF_CLK/_B phase jitter peak-to-peak.
Deviation in edge location with respect to mean edge
location.
tCKPJ
–50
50
ps
Notes:
1. 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.
2. Tolerance of ±100 ppm.
Table 31. MII Transmit AC Timing Specifications
At recommended operating conditions with LVDD of 3.3 V ± 5%.
Parameter
Symbol1
Min
Typical
Max
Unit
TX_CLK clock period 10 Mbps
tMTX
400
ns
TX_CLK clock period 100 Mbps
tMTX
—40
ns
TX_CLK duty cycle
tMTXH/tMTX
35
65
%
TX_CLK to MII data TXD[3:0], TX_ER, TX_EN delay
tMTKHDX
1
5
15
ns
相关PDF资料
PDF描述
395-012-520-204 CARD EDGE 12POS DL .100X.200 BLK
MPC8378ECVRAGD MPU POWERQUICC II PRO 689-PBGA
CAT93C66YI-GT3 IC EEPROM 4KB 2MHZ 8-TSSOP
395-012-520-202 CARD EDGE 12POS DL .100X.200 BLK
395-012-520-201 CARD EDGE 12POS DL .100X.200 BLK
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