MPC8548E Freescale, MPC8548E Datasheet - Page 42

• Manufacturer Part Number: MPC8548E
• Description: Integrated Processor
• Manufacturer: Freescale

w w w . D a t a S h e e t 4 U . c o m
Local Bus
Table 38
2.5 V DC.
10.2
Table 39
the frequency range of local bus see
42
High-level input voltage
Low-level input voltage
Input current (V
High-level output voltage (BV
Low-level output voltage (BV
Note:
1. Note that the symbol V
Local bus cycle time
Local bus duty cycle
LCLK[n] skew to LCLK[m] or LSYNC_OUT
Input setup to local bus clock (except LGTA/LUPWAIT)
LGTA/LUPWAIT input setup to local bus clock
Input hold from local bus clock (except LGTA/LUPWAIT)
LGTA/LUPWAIT input hold from local bus clock
LALE output transition to LAD/LDP output transition (LATCH hold time)
Local bus clock to output valid (except LAD/LDP and LALE)
Local bus clock to data valid for LAD/LDP
Local bus clock to address valid for LAD
Local bus clock to LALE assertion
Output hold from local bus clock (except LAD/LDP and LALE)
Output hold from local bus clock for LAD/LDP
Local bus clock to output high Impedance (except LAD/LDP and LALE)
describes the timing parameters of the local bus interface at BV
provides the DC electrical characteristics for the local bus interface operating at BV
Local Bus AC Electrical Specifications
IN
1
MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 4
= 0 V or V
Table 39. Local Bus Timing Parameters (BV
IN
Table 38. Local Bus DC Electrical Characteristics (2.5 V DC)
, in this case, represents the BV
Parameter
DD
IN
DD
Parameter
= BV
= min, I
= min, I
DD
)
OL
OH
= 1 mA)
= –1 mA)
Section 19.1, “Clock Ranges.”
IN
symbol referenced in
Symbol
V
V
V
V
I
I
DD
OH
IH
IL
OL
t
IH
Symbol
t
IL
t
t
t
t
LBKH/
t
t
t
LBKSKEW
t
t
t
t
t
LBKHOV1
LBKHOV2
LBKHOV3
LBKHOV4
LBKHOX1
LBKHOX2
LBKHOZ1
LBIVKH1
LBIVKH2
LBIXKH1
LBIXKH2
LBOTOT
= 3.3 V)—PLL Enabled
t
LBK
t
LBK
1
Table 1
DD
1.70
–0.3
Min
2.0
—
—
= 3.3 V. For information about
Min
7.5
1.8
1.7
1.0
1.0
1.5
0.7
0.7
43
—
—
—
—
—
—
and
Table
Max
Freescale Semiconductor
150
2.0
2.2
2.3
2.3
2.5
BV
2.
12
57
—
—
—
—
—
—
—
DD
Max
–15
0.7
0.4
10
—
+ 0.3
Unit
ns
ps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
DD
=
Unit
Notes
μA
7, 8
3, 4
3, 4
3, 4
3, 4
V
V
V
V
—
—
2
6
3
3
3
3
3
5