MPC852T datasheet(48/80 Pages) FREESCALE

48 / 80 page

MPC852T PowerQUICC™ Hardware Specifications, Rev. 4

Freescale Semiconductor

CPM Electrical Characteristics

14.4

Timer AC Electrical Specifications

Table 19 provides the general-purpose timer timings as shown in Figure 46.

Figure 46. CPM General-Purpose Timers Timing Diagram

14.5

SCC in NMSI Mode Electrical Specifications

Table 20 provides the NMSI external clock timing.

Table 19. Timer Timing

Num

Characteristic

All Frequencies

Unit

Min

Max

TIN/TGATE rise and fall time

—

TIN/TGATE low time

—

clk

TIN/TGATE high time

—

clk

TIN/TGATE cycle time

—

clk

CLKO low to TOUT valid

Table 20. NMSI External Clock Timing

Num

Characteristic

All Frequencies

Unit

Min

Max

100

RCLK3 and TCLK3 width high1

1/SYNCCLK

—

101

RCLK3 and TCLK3 width low

1/SYNCCLK + 5

—

102

RCLK3 and TCLK3 rise/fall time

—

15.00

103

TXD3 active delay (from TCLK3 falling edge)

0.00

50.00

104

RTS3 active/inactive delay (from TCLK3 falling edge)

0.00

50.00

105

CTS3 setup time to TCLK3 rising edge

5.00

—

106

RXD3 setup time to RCLK3 rising edge

5.00

—

CLKO

TIN/TGATE

(Input)

TOUT

(Output)

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