参数资料
型号: MC8640DHX1250HC
厂商: Freescale Semiconductor
文件页数: 60/130页
文件大小: 0K
描述: MPU DUAL E600 1023-FCCBGA
标准包装: 1
系列: MPC86xx
处理器类型: 32-位 MPC86xx PowerPC
速度: 1.25GHz
电压: 1.05V
安装类型: 表面贴装
封装/外壳: 1023-BCBGA,FCCBGA
供应商设备封装: 1023-FCCBGA(33x33)
包装: 散装
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
Freescale Semiconductor
35
Ethernet: Enhanced Three-Speed Ethernet (eTSEC), MII Management
Figure 16 shows the TBI transmit AC timing diagram.
Figure 16. TBI Transmit AC Timing Diagram
8.2.4.2
TBI Receive AC Timing Specifications
Table 33 provides the TBI receive AC timing specifications.
Table 33. TBI Receive AC Timing Specifications
At recommended operating conditions with L/TVDD of 3.3 V ± 5% and 2.5 V ± 5%.
Parameter
Symbol 1
Min
Typ
Max
Unit
PMA_RX_CLK[0:1] clock period
tTRX
3
16.0
ns
PMA_RX_CLK[0:1] skew
tSKTRX
7.5—
8.5ns
PMA_RX_CLK[0:1] duty cycle
tTRXH/tTRX
40
60
%
RCG[9:0] setup time to rising PMA_RX_CLK
tTRDVKH
2.5
ns
RCG[9:0] hold time to rising PMA_RX_CLK
tTRDXKH
1.5
ns
PMA_RX_CLK[0:1] clock rise time (20%–80%)
tTRXR
2
0.7—
2.4ns
PMA_RX_CLK[0:1] clock fall time (80%–20%)
tTRXF
2
0.7—
2.4ns
Note:
1. The symbols used for timing specifications herein follow the pattern of t(first two letters of functional block)(signal)(state) (reference)(state)
for inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tTRDVKH symbolizes TBI
receive timing (TR) with respect to the time data input signals (D) reach the valid state (V) relative to the tTRX clock reference
(K) going to the high (H) state or setup time. Also, tTRDXKH symbolizes TBI receive timing (TR) with respect to the time data
input signals (D) went invalid (X) relative to the tTRX clock reference (K) going to the high (H) state. Note that, in general, the
clock reference symbol representation is based on three letters representing the clock of a particular functional. For example,
the subscript of tTRX represents the TBI (T) receive (RX) clock. For rise and fall times, the latter convention is used with the
appropriate letter: R (rise) or F (fall). For symbols representing skews, the subscript is skew (SK) followed by the clock that
is being skewed (TRX).
2. Guaranteed by design.
3. ±100 ppm tolerance on PMA_RX_CLK[0:1] frequency
GTX_CLK
TCG[9:0]
tTTXR
tTTX
tTTXH
tTTXR
tTTXF
tTTKHDV
tTTKHDX
tTTXF
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