
MPC860 PowerQUICC Family Hardware Specifications, Rev. 9
32
Freescale Semiconductor
Bus Signal Timing
Figure 20 provides the timing for the synchronous external master access controlled by the GPCM.
Figure 20. Synchronous External Master Access Timing (GPCM Handled ACS = 00)
Figure 21 provides the timing for the asynchronous external master memory access controlled by the
GPCM.
Figure 21. Asynchronous External Master Memory Access Timing (GPCM Controlled—ACS = 00)
Figure 22 provides the timing for the asynchronous external master control signals negation.
Figure 22. Asynchronous External Master—Control Signals Negation Timing
CLKOUT
TS
A[0:31],
TSIZ[0:1],
R/W, BURST
CSx
B41
B42
B40
B22
CLKOUT
AS
A[0:31],
TSIZ[0:1],
R/W
CSx
B39
B40
B22
AS
CSx, WE[0:3],
OE, GPLx,
BS[0:3]
B43