MPC870 FREESCALE [Freescale Semiconductor, Inc], MPC870 Datasheet - Page 35

• Manufacturer Part Number: MPC870
• Description: Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Bus Signal Timing
Figure 21
Figure 22
Figure 23
35
Figure 22. Asynchronous External Master Memory Access Timing (GPCM Controlled—ACS = 00)
CSx, WE[0:3],
R/W, BURST
TSIZ[0:1],
provides the timing for the synchronous external master access controlled by the GPCM.
provides the timing for the asynchronous external master memory access controlled by the GPCM.
provides the timing for the asynchronous external master control signals negation.
CLKOUT
OE, GPLx,
TSIZ[0:1],
A[0:31],
CLKOUT
Figure 21. Synchronous External Master Access Timing (GPCM Handled ACS = 00)
A[0:31],
BS[0:3]
R/W
CSx
AS
Figure 23. Asynchronous External Master—Control Signals Negation Timing
CSx
TS
AS
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
MPC875/MPC870 Hardware Specifications, Rev. 3.0
B40
B39
B41
B40
B42
B43
B22
B22
Freescale Semiconductor