MPC8247 MOTOROLA [Motorola, Inc], MPC8247 Datasheet - Page 18

• Manufacturer Part Number: MPC8247
• Description: MPC8272 PowerQUICC II Family Hardware Specifications
• Manufacturer: MOTOROLA [Motorola, Inc]

AC Electrical Characteristics
AC Electrical Characteristics
Figure 7 shows TDM input and output signals.
Figure 8 shows PIO and timer signals.
18
PIO/IDMA/TIMER[TGATE assertion] input signals
TIMER input signal [TGATE deassertion]
TIMER(sp42/43)/ PIO(sp42a/sp43a)
Note: There are four possible TDM timing conditions:
Note: TGATE is asserted on the rising edge of the clock; it is deasserted on the falling edge.
1. Input sampled on the rising edge and output driven on the rising edge (shown).
2. Input sampled on the rising edge and output driven on the falling edge.
3. Input sampled on the falling edge and output driven on the falling edge.
4. Input sampled on the falling edge and output driven on the rising edge.
TDM output signals
TDM input signals
MPC8272 PowerQUICC II™ Family Hardware Specifications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Serial CLKin
IDMA output signals
Freescale Semiconductor, Inc.
For More Information On This Product,
output signals
Figure 8. PIO and Timer Signal Diagram
(See note)
(See note)
Figure 7. TDM Signal Diagram
Sys clk
Go to: www.freescale.com
sp22
sp20
sp40/sp41
sp21
sp22
sp42/sp43
sp23
sp42a/sp43a
sp42/sp43
MOTOROLA
sp23