C165 查看數據表（PDF） - Siemens AG

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C165

16-Bit CMOS Single-Chip Microcontroller

Siemens AG 

C165

Pin Definitions and Functions

Symbol

P5.10 –

P5.15

XTAL1

Pin

No.

100

1-5

100

1

2

3

4

5

7

XTAL2 8

P3.0 – 10 –

P3.13, 23,

P3.15 24

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Input (I) Function

Output (O)

I

Port 5 is a 6-bit input-only port with Schmitt-Trigger

I

characteristics. The pins of Port 5 also serve as timer inputs:

I

P5.10 T6EUD GPT2 Timer T6 Ext.Up/Down Ctrl.Input

I

P5.11 T5EUD GPT2 Timer T5 Ext.Up/Down Ctrl.Input

I

P5.12 T6IN

GPT2 Timer T6 Count Input

I

P5.13 T5IN

GPT2 Timer T5 Count Input

I

P5.14 T4EUD GPT1 Timer T4 Ext.Up/Down Ctrl.Input

I

P5.15 T2EUD GPT1 Timer T2 Ext.Up/Down Ctrl.Input

I

XTAL1: Input to the oscillator amplifier and input to the

internal clock generator

O

XTAL2: Output of the oscillator amplifier circuit.

To clock the device from an external source, drive XTAL1,

while leaving XTAL2 unconnected. Minimum and maximum

high/low and rise/fall times specified in the AC Characteristics

must be observed.

I/O

Port 3 is a 15-bit (P3.14 is missing) bidirectional I/O port. It is

I/O

bit-wise programmable for input or output via direction bits.

I/O

For a pin configured as input, the output driver is put into high-

impedance state. Port 3 outputs can be configured as push/

pull or open drain drivers.

The following Port 3 pins also serve for alternate functions:

O

P3.1

T6OUT GPT2 Timer T6 Toggle Latch Output

I

P3.2

CAPIN GPT2 Register CAPREL Capture Input

O

P3.3

T3OUT GPT1 Timer T3 Toggle Latch Output

I

P3.4

T3EUD GPT1 Timer T3 Ext.Up/Down Ctrl.Input

I

P3.5

T4IN

GPT1 Timer T4 Input for

Count/Gate/Reload/Capture

I

P3.6

T3IN

GPT1 Timer T3 Count/Gate Input

I

P3.7

T2IN

GPT1 Timer T2 Input for

Count/Gate/Reload/Capture

I/O

P3.8

MRST SSC Master-Rec./Slave-Transmit I/O

I/O

P3.9

MTSR SSC Master-Transmit/Slave-Rec. O/I

O

P3.10 T×D0

ASC0 Clock/Data Output (Asyn./Syn.)

I/O

P3.11 R×D0 ASC0 Data Input (Asyn.) or I/O (Syn.)

O

P3.12 BHE

Ext. Memory High Byte Enable Signal,

O

WRH

Ext. Memory High Byte Write Strobe

I/O

P3.13 SCLK SSC Master Clock Outp./Slave Cl. Inp.

O

P3.15 CLKOUT System Clock Output (=CPU Clock)

Semiconductor Group

5

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