参数资料
型号: MPC853TVR80
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 80 MHz, RISC PROCESSOR, PBGA256
封装: PLASTIC, BGA-256
文件页数: 51/88页
文件大小: 1185K
代理商: MPC853TVR80
MPC853T Hardware Specification, Rev. 1
Freescale Semiconductor
55
CPM Electrical Characteristics
13.6 SCC in NMSI Mode Electrical Specifications
Table 21 provides the NMSI external clock timing.
Table 22 provides the NMSI internal clock timing.
Table 21. NMSI External Clock Timing
Num
Characteristic
All Frequencies
Unit
Min
Max
100
RCLK3 and TCLK3 width high 1
1
The ratios SyncCLK/RCLK3 and SyncCLK/TCLK3 must be greater than or equal to 2.25/1.
1/SYNCCLK
ns
101
RCLK3 and TCLK3 width low
1/SYNCCLK +5
ns
102
RCLK3 and TCLK3 rise/fall time
15.00
ns
103
TXD3 active delay (from TCLK3 falling edge)
0.00
50.00
ns
104
RTS3 active/inactive delay (from TCLK3 falling edge)
0.00
50.00
ns
105
CTS3 setup time to TCLK3 rising edge
5.00
ns
106
RXD3 setup time to RCLK3 rising edge
5.00
ns
107
RXD3 hold time from RCLK3 rising edge 2
2
Also applies to CD and CTS hold time when they are used as external sync signals.
5.00
ns
108
CD3 setup Time to RCLK3 rising edge
5.00
ns
Table 22. NMSI Internal Clock Timing
Num
Characteristic
All Frequencies
Unit
Min
Max
100
RCLK3 and TCLK3 frequency 1
1
The ratios SyncCLK/RCLK3 and SyncCLK/TCLK3 must be greater than or equal to 3/1.
0.00
SYNCCLK/3
MHz
102
RCLK3 and TCLK3 rise/fall time
ns
103
TXD3 active delay (from TCLK3 falling edge)
0.00
30.00
ns
104
RTS3 active/inactive delay (from TCLK3 falling edge)
0.00
30.00
ns
105
CTS3 setup time to TCLK3 rising edge
40.00
ns
106
RXD3 setup time to RCLK3 rising edge
40.00
ns
107
RXD3 hold time from RCLK3 rising edge 2
2
Also applies to CD and CTS hold time when they are used as external sync signals.
0.00
ns
108
CD3 setup time to RCLK3 rising edge
40.00
ns
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