M5271EVB Freescale Semiconductor, M5271EVB Datasheet - Page 22

• Manufacturer Part Number: M5271EVB
• Description: BOARD EVAL FOR MCF5270/71
• Manufacturer: Freescale Semiconductor

Specifications of M5271EVB

• Processor To Be Evaluated: MCF5271
• Interface Type: RS-232, Ethernet
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Electrical Characteristics
7.5
Table 11
22
1
2
3
Name
freq
B1a
B1b
B2a
B2b
Timing specifications are tested using full drive strength pad configurations in a 50ohm transmission line
environment..
TEA and TA pins are being referred to as control inputs.
B0
B4
B5
Refer to figure A-19.
lists processor bus input timings.
External Interface Timing Characteristics
System bus frequency
CLKOUT period
Control input valid to CLKOUT high
BKPT valid to CLKOUT high
CLKOUT high to control inputs invalid
CLKOUT high to asynchronous control input BKPT invalid
Data input (D[31:0]) valid to CLKOUT high
CLKOUT high to data input (D[31:0]) invalid
All processor bus timings are synchronous; that is, input setup/hold and
output delay with respect to the rising edge of a reference clock. The
reference clock is the CLKOUT output.
All other timing relationships can be derived from these values.
MCF5271 Integrated Microprocessor Hardware Specification, Rev. 4
Table 11. Processor Bus Input Timing Specifications
3
Characteristic
2
2
Control Inputs
Data Inputs
1
NOTE
3
Symbol
t
t
t
t
BKVCH
BKNCH
t
t
DIVCH
f
CVCH
CHCII
CHDII
sys/2
t
cyc
Freescale Semiconductor
Min
50
—
9
9
0
0
4
0
Max
1/75
75
—
—
—
—
—
—
MHz
Unit
ns
ns
ns
ns
ns
ns
ns