参数资料
型号: MPC180LMB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: MICROPROCESSOR, PQFP100
封装: LQFP-100
文件页数: 6/28页
文件大小: 356K
代理商: MPC180LMB
14
MPC180 Hardware Reference Manual
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Electrical and Thermal Characteristics
Figure 7. MPC8260 Interface: Write Cycle
When the destination or source of a transaction is the input or output FIFO or a register that resides in the
external bus interface (ID, IMASK, IBCTL, IBCNT, OBCTL, OBCNT—see the MPC180 User’s Manual
for further details), the transaction occurs in a deterministic number of cycles. Therefore, the PSDVAL
signal need not be asserted to indicate during which cycle valid data is on the bus.
Figure 8 shows a typical read cycle when the MPC180 is interfacing to an MPC8260 and Figure 9 shows a
typical write cycle to the external bus interface.
KHPX
PVKH
KHTAX
KHTAV
KHDX
DVKH
KHAX
AVKH
KHBX
BVKH
KHWX
WVKH
KHCX
CVKH
KHKH
CLK
CS
R/W
BURST
A[18:29]
D[0:31]
LUPMWAIT
PSDVAL
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