参数资料
型号: C167CS-4R
厂商: INFINEON TECHNOLOGIES AG
英文描述: BOARD INTERFACE KGZ/GMS 0-100%
中文描述: 16位单片机
文件页数: 14/80页
文件大小: 1151K
代理商: C167CS-4R
C167CS-4R
C167CS-L
Data Sheet
10
V2.0, 2000-06
ALE
98
O
Address Latch Enable Output. Can be used for latching the
address into external memory or an address latch in the
multiplexed bus modes.
External Access Enable pin. A low level at this pin during and
after Reset forces the C167CS to begin instruction execution
out of external memory. A high level forces execution out of
the internal program memory.
“ROMless” versions must have this pin tied to ‘0’.
PORT0 consists of the two 8-bit bidirectional I/O ports P0L
and P0H. It is bit-wise programmable for input or output via
direction bits. For a pin configured as input, the output driver
is put into high-impedance state.
In case of an external bus configuration, PORT0 serves as
the address (A) and address/data (AD) bus in multiplexed
bus modes and as the data (D) bus in demultiplexed bus
modes.
Demultiplexed bus modes:
Data Path Width:
8-bit
P0L.0 – P0L.7:
D0 – D7
P0H.0 – P0H.7:
I/O
Multiplexed bus modes:
Data Path Width:
8-bit
P0L.0 – P0L.7:
AD0 – AD7
P0H.0 – P0H.7:
A8 - A15
EA
99
I
PORT0
P0L.0-7
P0H.0-7
100-
107
108,
111-
117
IO
16-bit
D0 - D7
D8 - D15
16-bit
AD0 - AD7
AD8 - AD15
Table 2
Symbol Pin
Pin Definitions and Functions
(cont’d)
Input
Outp.
Num.
Function
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