C513A-2RN datasheet(8/43 Pages) SIEMENS

Part #	C513A-2RN

Description	8-Bit CMOS Microcontroller

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

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Semiconductor Group

8

C511 / C513

Table 3

Pin Definitions and Functions

Symbol

Pin Number

I/O*) Function

P-LCC-

44

P-MQFP-

44

P1.7-P1.0

9-2

2

3

4

5

6

7

3-1,

44-40

40

41

42

43

44

1

I/O

Port 1

is a bidirectional I/O port with internal pull-up resistors.

Port 1 pins that have 1s written to them are pulled high by

the internal pullup resistors, and in that state can be used

as inputs. As inputs, port 1 pins being externally pulled

low will source current (

I

IL, in the DC characteristics)

because of the internal pullup resistors. Port 1 also

contains the timer 2 and SSC pins as secondary function.

In general the output latch corresponding to a secondary

function must be programmed to a one (1) for that

function to operate.

For the outputs of the SSC (SCLK, STO) special circuitry

is implemented, providing true push-pull capability. The

STO output in addition will have true tristate capability.

When used for SSC inputs, the pull-up resistors will be

switched off and the inputs will float (high ohmic inputs).

The alternate functions are assigned to port 1, as follows:

P1.0

T2

Input to counter 2 1)

P1.1

T2EX

Capture -Reload trigger of timer 2 1)

Up-Down count

P1.2

SCLK

SSC Master Clock Output

SSC Slave Clock Input

P1.3

SRI

SSC Receive Input

P1.4

STO

SSC Transmit Output

P1.5

SLS

Slave Select Input

1) not available in the C511/511A

*) I = Input

O = Output

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C513A-2RN Datasheet(PDF) 8 Page - Siemens Semiconductor Group

C513A-2RN Datasheet(HTML) 8 Page - Siemens Semiconductor Group

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