mpc5644a Freescale Semiconductor, Inc, mpc5644a Datasheet - Page 113

• Manufacturer Part Number: mpc5644a
• Description: Mpc5644a Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

3.17.4
Freescale Semiconductor
1
2
3
1
#
1
2
3
4
5
Set SIU_ECCR[EBDF] to divide by two or divide by four if the system frequency is greater than 66 MHz.
System Frequency must be <=132 MHz and SIU_ECCR[EBDF] set to divide by four.
Pad restrictions limit the maximum operating frequency.
Set SIU_ECCR[EBDF] to divide by two or divide by four if the system frequency is greater than 66 MHz
Width
Width
16-bit
16-bit
32-bit
16-bit
16-bit
32-bit
Port
Port
t
t
t
t
COH
Symbol
CDC
CRT
T
CFT
C
External Bus Interface (EBI) and calibration bus interface timing
Table 40. External bus interface (EBI) and calibration bus operation timing
CC
CC
CC
CC
CC
Multiplexed
Multiplexed
Table 39. Calibration bus interface maximum operating frequency
Mode
Mode
C
P CLKOUT Period
T CLKOUT duty cycle
T CLKOUT rise time
T CLKOUT fall time
P CLKOUT Posedge to Output Signal
Yes
Yes
Yes
Yes
Table 38. External Bus Interface maximum operating frequency
No
No
Invalid or High Z(Hold Time)
ADDR[8:31]
CS[0:3]
DATA[0:31]
OE
RD_WR
TS
WE[0:3]/BE[0:3]
CAL_ADDR[12:15]
CAL_ADDR[12:15]
Preliminary—Subject to Change Without Notice
MPC5644A Microcontroller Data Sheet, Rev. 4
CAL_DATA[31]
ADDR[12:15]
CAL_WE[2:3]
ADDR[12:15]
ADDR[12:15]
ADDR[12:15]
Pin Usage
Pin Usage
Characteristic
GPIO
CAL_ADDR[16:30]
CAL_ADDR[16:30]
CAL_ADDR[16:30]
CAL_DATA[16:30]
ADDR[16:31]
ADDR[16:31]
ADDR[16:31]
DATA[16:31]
Pin Usage
Pin Usage
GPIO
GPIO
66 MHz (ext. bus)
45%
15.2
Min
1.3
—
—
CAL_ADDR[12:30]
CAL_DATA[0:15]
CAL_ADDR[0:15]
CAL_DATA[0:15]
CAL_DATA[0:15]
CAL_DATA[0:15]
ADDR[16:31]
55%
Max
DATA[0:15]
DATA[0:15]
DATA[0:15]
DATA[0:15]
Pin Usage
Pin Usage
—
—
3
3
2
Unit
T
ns
ns
ns
ns
C
Electrical characteristics
Signals are
measured at 50%
V
DDE
Max. Operating
Max. Operating
.
Frequency
Frequency
33 MHz
33 MHz
66 MHz
66 MHz
66 MHz
66 MHz
Notes
1
2,3
2,3
1
1
1
1
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