参数资料
型号: MC8640DTHX1000HE
厂商: Freescale Semiconductor
文件页数: 71/130页
文件大小: 0K
描述: IC DUAL CORE PROCESSOR 1023-CBGA
标准包装: 1
系列: MPC86xx
处理器类型: 32-位 MPC86xx PowerPC
速度: 1.0GHz
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: 托盘
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
Freescale Semiconductor
45
Local Bus
Figure 26 shows the local bus signals with PLL enabled.
Figure 26. Local Bus Signals (PLL Enabled)
NOTE
PLL bypass mode is recommended when LBIU frequency is at or below
83 MHz. When LBIU operates above 83 MHz, LBIU PLL is recommended
to be enabled.
Table 42 describes the general timing parameters of the local bus interface at OVDD = 3.3 V with PLL
bypassed.
Table 42. Local Bus Timing Parameters—PLL Bypassed
Parameter
Symbol1
Min
Max
Unit
Notes
Local bus cycle time
tLBK
12
ns
2
Local bus duty cycle
tLBKH/tLBK
45
55
%
Internal launch/capture clock to LCLK delay
tLBKHKT
2.3
3.9
ns
8
Input setup to local bus clock (except LGTA/LUPWAIT)
tLBIVKH1
5.7
ns
4, 5
LGTA/LUPWAIT input setup to local bus clock
tLBIVKL2
5.6
ns
4, 5
Input hold from local bus clock (except LGTA/LUPWAIT)
tLBIXKH1
–1.8
ns
4, 5
Output Signals:
LA[27:31]/LBCTL/LBCKE/LOE/
LSDA10/LSDWE/LSDRAS/
LSDCAS/LSDDQM[0:3]
tLBKHOV1
tLBKHOV2
tLBKHOV3
LSYNC_IN
Input Signals:
LAD[0:31]/LDP[0:3]
Output (Data) Signals:
LAD[0:31]/LDP[0:3]
Output (Address) Signal:
LAD[0:31]
LALE
tLBIXKH1
tLBIVKH1
tLBIVKH2
tLBIXKH2
tLBKHOX1
tLBKHOZ1
tLBKHOX2
tLBKHOZ2
Input Signal:
LGTA
tLBOTOT
tLBKHOZ2
tLBKHOX2
tLBKHOV4
LUPWAIT
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