SAB-C161K-L16M datasheet(7/43 Pages) SIEMENS

Part #	SAB-C161K-L16M

Description	16-Bit CMOS Single-Chip Microcontroller

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

Direct Link	http://www.siemens.com/

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Semiconductor Group

6

1996 Intermediate Version

C161

RSTOUT 66

O

Internal Reset Indication Output. This pin is set to a low level when

the part is executing either a hardware-, a software- or a watchdog

timer reset. RSTOUT remains low until the EINIT (end of

initialization) instruction is executed.

NMI

67

I

Non-Maskable Interrupt Input. A high to low transition at this pin

causes the CPU to vector to the NMI trap routine.

When the PWRDN (power down) instruction is executed, the NMI

pin must be low in order to force the C161 to go into power down

mode. If NMI is high, when PWRDN is executed, the part will

continue to run in normal mode.

Power Down is only available on the C161K and the C161O.

If not used, pin NMI should be pulled high externally.

P6.0 –

P6.3

68 -

71

I/O

Port 6 is a 4-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.

The Port 6 pins also serve for alternate functions:

68

69

70

71

O

P6.0

CS0

Chip Select 0 Output (C161O, C161K)

P6.1

CS1

Chip Select 1 Output (C161O, C161K)

P6.2

CS2

Chip Select 2 Output (C161O)

P6.3

CS3

Chip Select 3 Output (C161O)

The C161V does not provide CS outputs.

P2.9 –

P2.15

72 -

78

72

...

75

I/O

I

...

I

Port 2 is a 7-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.

The following Port 2 pins also serve for alternate functions:

P2.9

EX1IN

Fast External Interrupt 1 Input

...

P2.12

EX4IN

Fast External Interrupt 4 Input

76

...

78

I

...

I

P2.13

EX5IN

Fast External Interrupt 5 Input

...

P2.15

EX7IN

Fast External Interrupt 7 Input

These ext. interrupts are only available on the C161O.

P5.14 –

P5.15

79

80

I

Port 5

is

a

2-bit

input-only

port

with

Schmitt-Trigger

characteristics.

79

80

I

The pins of Port 5 also serve as timer inputs:

P5.14

T4EUD

GPT1 Timer T4 Ext.Up/Down Ctrl.Input

P5.15

T2EUD

GPT1 Timer T2 Ext.Up/Down Ctrl.Input

These functions are only available on the C161K and the C161O.

Pin Definitions and Functions (cont’d)

Symbol

Number

Input

Output

Function

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SAB-C161K-L16M Datasheet(PDF) 7 Page - Siemens Semiconductor Group

SAB-C161K-L16M Datasheet(HTML) 7 Page - Siemens Semiconductor Group

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