參數(shù)資料
型號： MPC859DSLCZP50A
廠商： Freescale Semiconductor
文件頁數(shù)： 16/96頁
文件大?。?/td> 0K
描述： IC MPU POWERQUICC 50MHZ 357PBGA
標準包裝： 44
系列： MPC8xx
處理器類型： 32-位 MPC8xx PowerQUICC
速度： 50MHz
電壓： 1.8V
安裝類型： 表面貼裝
封裝/外殼： 357-BBGA
供應商設備封裝： 357-PBGA（25x25）
包裝： 托盤
MPC866/MPC859 Hardware Specifications, Rev. 2
Freescale Semiconductor
23
Bus Signal Timing
B35
A(0:31), BADDR(28:30) to CS valid, as
requested by control bit BST4 in the
corresponding word in the UPM (MIN =
0.25 x B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
B35a A(0:31), BADDR(28:30), and D(0:31)
to BS valid, as Requested by BST1 in
the corresponding word in the UPM
(MIN = 0.50 x B1 – 2.00)
13.20
—
10.50
—
8.00
—
5.60
—
ns
B35b A(0:31), BADDR(28:30), and D(0:31)
to BS valid, as requested by control bit
BST2 in the corresponding word in the
UPM (MIN = 0.75 x B1 – 2.00)
20.70
—
16.70
—
13.00
—
9.40
—
ns
B36
A(0:31), BADDR(28:30), and D(0:31)
to GPL valid as requested by control bit
GxT4 in the corresponding word in the
UPM (MIN = 0.25 x B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
B37
UPWAIT valid to CLKOUT falling
edge 8 (MIN = 0.00 x B1 + 6.00)
6.00
—
6.00
—
6.00
—
6.00
—
ns
B38
CLKOUT falling edge to UPWAIT
valid8 (MIN = 0.00 x B1 + 1.00)
1.00
—
1.00
—
1.00
—
1.00
—
ns
B39
AS valid to CLKOUT rising edge 9 (MIN
= 0.00 x B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B40
A(0:31), TSIZ(0:1), RD/WR, BURST,
valid to CLKOUT rising edge (MIN =
0.00 x B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B41
TS valid to CLKOUT rising edge (setup
time) (MIN = 0.00 x B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B42
CLKOUT rising edge to TS valid (hold
time) (MIN = 0.00 x B1 + 2.00)
2.00
—
2.00
—
2.00
—
2.00
—
ns
B43
AS negation to memory controller
signals negation (MAX = TBD)
—
TBD
—
TBD
—
TBD
—
TBD
ns
1
For part speeds above 50 MHz, use 9.80 ns for B11a.
2
The timing required for BR input is relevant when the MPC866/859 is selected to work with the internal bus arbiter.
The timing for BG input is relevant when the MPC866/859 is selected to work with the external bus arbiter.
3
For part speeds above 50 MHz, use 2 ns for B17.
4
The D(0:31) and DP(0:3) input timings B18 and B19 refer to the rising edge of CLKOUT, in which the TA input signal
is asserted.
5
For part speeds above 50 MHz, use 2 ns for B19.
6
The D(0:31) and DP(0:3) input timings B20 and B21 refer to the falling edge of CLKOUT. This timing is valid only for
read accesses controlled by chip-selects under control of the UPM in the memory controller, for data beats, where
DLT3 = 1 in the UPM RAM words. (This is only the case where data is latched on the falling edge of CLKOUT.)
7
The timing B30 refers to CS when ACS = 00 and to WE(0:3) when CSNT = 0.
Table 9. Bus Operation Timings (continued)
Num
Characteristic
33 MHz
40 MHz
50 MHz
66 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
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