MPC866 Freescale Semiconductor, MPC866 Datasheet - Page 59
MPC866
Manufacturer Part Number
MPC866
Description
(MPC859 / MPC866) Hardware Specifications
Manufacturer
Freescale Semiconductor
Datasheet
1.MPC866.pdf
(92 pages)
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12.7
Table 22 shows the NMSI external clock timings.
Table 23 shows the NMSI internal clock timings.
1
2
MOTOROLA
1
2
Num
The ratios SyncCLK/RCLK1 and SyncCLK/TCLK1 must be greater or equal to 3/1.
Also applies to CD and CTS hold time when they are used as an external sync signals.
100
102
103
104
105
106
107
108
The ratios SyncCLK/RCLK1 and SyncCLK/TCLK1 must be greater than or equal to 2.25/1.
Also applies to CD and CTS hold time when they are used as an external sync signal.
Num
100
101
102
103
104
105
106
107
108
RCLK1 and TCLK1 frequency
RCLK1 and TCLK1 rise/fall time
TXD1 active delay (from TCLK1 falling edge)
RTS1 active/inactive delay (from TCLK1 falling edge)
CTS1 setup time to TCLK1 rising edge
RXD1 setup time to RCLK1 rising edge
RXD1 hold time from RCLK1 rising edge
CD1 setup time to RCLK1 rising edge
SCC in NMSI Mode Electrical Specifications
RCLK1 and TCLK1 width high
RCLK1 and TCLK1 width low
RCLK1 and TCLK1 rise/fall time
TXD1 active delay (from TCLK1 falling edge)
RTS1 active/inactive delay (from TCLK1 falling edge)
CTS1 setup time to TCLK1 rising edge
RXD1 setup time to RCLK1 rising edge
RXD1 hold time from RCLK1 rising edge
CD1 setup time to RCLK1 rising edge
Freescale Semiconductor, Inc.
For More Information On This Product,
Table 22. NMSI External Clock Timings
Table 23. NMSI Internal Clock Timings
MPC866/859 Hardware Specifications
Characteristic
Characteristic
1
Go to: www.freescale.com
1
2
2
1/SYNCCLK +5
1/SYNCCLK
CPM Electrical Characteristics
All Frequencies
40.00
40.00
40.00
0.00
0.00
0.00
0.00
Min
0.00
0.00
5.00
5.00
5.00
5.00
Min
—
—
All Frequencies
SYNCCLK/3
30.00
30.00
Max
—
—
—
—
—
15.00
50.00
50.00
Max
—
—
—
—
—
—
Unit
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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