SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 187
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SAF-C164SM
Manufacturer Part Number
SAF-C164SM
Description
16-Bit CMOS Microcontroller
Manufacturer
Infineon Technologies
Datasheet
1.SAF-C164SM.pdf
(470 pages)
- Current page: 187 of 470
- Download datasheet (6Mb)
Bit
MCTC
RWDCx
MTTCx
BTYP
EWENx
ALECTLx ALE Lengthening Control
BUSACTx Bus Active Control
BSWCx
1)
User’s Manual
A BUSCON switch waitstate is enabled by bit BUSCONx.BSWCx of the address window that is left.
Function
Memory Cycle Time Control (Number of memory cycle time wait states)
0000: 15 waitstates
…
1111: No waitstates
Read/Write Delay Control for BUSCONx
0:
1:
Memory Tristate Time Control
0:
1:
External Bus Configuration
00:
01:
10:
11:
Note: For BUSCON0 BTYP is defined via PORT0 during reset.
Early Write Enable
0:
1:
0:
1:
0:
1:
BUSCON Switch Control
0:
1:
(Number = 15 - <MCTC>)
With rd/wr delay: activate command 1 TCL after falling edge of ALE
No rd/wr delay: activate command with falling edge of ALE
1 waitstate
No waitstate
8-bit Demultiplexed Bus
8-bit Multiplexed Bus
16-bit Demultiplexed Bus
16-bit Multiplexed Bus
Normal WR signal
Early write: The WR signal is deactivated and write data is tristated
one TCL earlier
Normal ALE signal
Lengthened ALE signal
External bus disabled
External bus enabled within respective address window (ADDRSEL)
Address windows are switched immediately
A tristate waitstate is inserted if the next bus cycle accesses a window
different from the one controlled by this BUSCON register.
9-18
External Bus Interface
C164CM/C164SM
Derivatives
V1.0, 2002-02
1)
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