C165 查看數據表（PDF） - Siemens AG
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C165 Datasheet PDF : 49 Pages
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C165
Pin Definitions and Functions (cont’d)
Symbol Pin
No.
P6.0 – 84 -
P6.7
91
84
...
88
89
90
91
P2.8 – 92 -
P2.15 99
92
...
99
VPP
42
VCC
9, 30,
40, 51,
71, 80
VSS
6, 29,
41, 52,
72, 79
Input (I) Function
Output (O)
I/O
Port 6 is an 8-bit bidirectional I/O port. 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. Port 6 outputs can be configured as push/
pull or open drain drivers.
The following Port 6 pins also serve for alternate functions:
O
P6.0
CS0
Chip Select 0 Output
...
...
...
...
O
P6.4
CS4
Chip Select 4 Output
I
P6.5
HOLD External Master Hold Request Input
O
P6.6
HLDA Hold Acknowledge Output
O
P6.7
BREQ Bus Request Output
I/O
Port 2 is an 8-bit bidirectional I/O port. 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. Port 2 outputs can be configured as push/
pull or open drain drivers.
The following Port 2 pins also serve for alternate functions:
I
P2.8
EX0IN Fast External Interrupt 0 Input
...
...
...
...
I
P2.15 EX7IN Fast External Interrupt 7 Input
-
Flash programming voltage. This pin accepts the
programming voltage for flash versions of the C165.
Note: This pin is not connected (NC) on non-flash versions.
-
Digital Supply Voltage:
+ 5 V during normal operation and idle mode.
≥ 2.5 V during power down mode
-
Digital Ground.
Semiconductor Group
8
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