mfr4300 Freescale Semiconductor, Inc, mfr4300 Datasheet - Page 253

• Manufacturer Part Number: mfr4300
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
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Table A-14. HCS12 Interface AC Switching Characteristics Over the Operating Range
Based on f
Depends on duty cycle of EXTAL/CLK_CC: t
the period in ns of EXTAL/CLK_CC and t
EXTAL/CLK_CC.
ECLK high access time (ECLK high to Read Data valid)
CLK_CC
Address valid time to ECLK rise
Multiplexed Address hold time
Low strobe valid to ECLK rise
RW valid time to ECLK rise
Pulse width, ECLK High
Pulse width, ECLK Low
Read Data setup time
Low strobe delay time
Write Data delay time
= 40 MHz.
Data hold to address
Low strobe hold time
Write Data hold time
Read Data hold time
Characteristic
RW delay time
RW hold time
MFR4300 Data Sheet, Rev. 3
CLK_CC_HIGH
HEC
= 99 + (t
is the period in ns of the high phase of
CLK_CC
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
DDW
HDW
DRW
HRW
u 0.5) – t
SRW
HEC
t
HDA
t
DEC
SDR
HDR
LEC
DLS
SLS
HLS
HA
SA
CLK_CC_HIGH
Min
99
30
11
80
14
50
13
14
—
—
—
2
2
2
0
2
2
Max
, where t
70
90
—
—
—
—
—
—
—
—
—
—
—
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7
Electrical Characteristics
CLK_CC
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
is
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